diff --git a/go/res/values-az-rAZ/strings.xml b/go/res/values-az-rAZ/strings.xml
deleted file mode 100644
index c4b8cb7..0000000
--- a/go/res/values-az-rAZ/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"Qısayolu seçmək üçün toxunub saxlayın."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"Qısayolu seçmək üçün iki dəfə basıb saxlayın və ya fərdi əməliyyatlardan istifadə edin."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"Qısayollar"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"<xliff:g id="NAME">%1$s</xliff:g> qısayolları"</string>
-</resources>
diff --git a/go/res/values-bs-rBA/strings.xml b/go/res/values-bs-rBA/strings.xml
deleted file mode 100644
index 7042468..0000000
--- a/go/res/values-bs-rBA/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"Dodirnite i držite da uzmete prečicu."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"Dvaput dodirnite i držite da uzmete prečicu ili koristite prilagođene akcije."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"Prečice"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"Prečice aplikacije <xliff:g id="NAME">%1$s</xliff:g>"</string>
-</resources>
diff --git a/go/res/values-ka-rGE/strings.xml b/go/res/values-ka-rGE/strings.xml
deleted file mode 100644
index 1b46534..0000000
--- a/go/res/values-ka-rGE/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"შეეხეთ და დააყოვნეთ მალსახმობის ასარჩევად."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"ორმაგად შეეხეთ და გეჭიროთ მალსახმობის ასარჩევად ან მორგებული მოქმედებების გამოსაყენებლად."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"მალსახმობები"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"<xliff:g id="NAME">%1$s</xliff:g>-ის მალსახმობები"</string>
-</resources>
diff --git a/go/res/values-ky-rKG/strings.xml b/go/res/values-ky-rKG/strings.xml
deleted file mode 100644
index 4c7e973..0000000
--- a/go/res/values-ky-rKG/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"Кыска жолду тандоо үчүн басып туруңуз."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"Кыска жолду тандоо үчүн эки жолу таптап, кармап туруңуз же ыңгайлаштырылган аракеттерди колдонуңуз."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"Кыска жолдор"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"<xliff:g id="NAME">%1$s</xliff:g> кыска жол"</string>
-</resources>
diff --git a/go/res/values-lo-rLA/strings.xml b/go/res/values-lo-rLA/strings.xml
deleted file mode 100644
index 7864884..0000000
--- a/go/res/values-lo-rLA/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"ແຕະຄ້າງໄວ້ເພື່ອຮັບປຸ່ມລັດ."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"ແຕະສອງເທື່ອຄ້າງໄວ້ເພື່ອຮັບປຸ່ມລັດ ຫຼື ໃຊ້ຄຳສັ່ງແບບກຳນົດເອງ."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"ປຸ່ມລັດ"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"ປຸ່ມລັດ <xliff:g id="NAME">%1$s</xliff:g>"</string>
-</resources>
diff --git a/go/res/values-si-rLK/strings.xml b/go/res/values-si-rLK/strings.xml
deleted file mode 100644
index 4b25c90..0000000
--- a/go/res/values-si-rLK/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"කෙටි මගක් තෝරා ගැනීමට ස්පර්ශ කර අල්ලාගෙන සිටින්න."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"විජට් එකක් තෝරා ගැනීමට හෝ අභිරුචි භාවිත කිරීමට දෙවරක් තට්ටු කර අල්ලා ගෙන සිටින්න."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"කෙටි මං"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"කෙටි මං <xliff:g id="NAME">%1$s</xliff:g>"</string>
-</resources>
diff --git a/go/res/values-uz-rUZ/strings.xml b/go/res/values-uz-rUZ/strings.xml
deleted file mode 100644
index 318bc15..0000000
--- a/go/res/values-uz-rUZ/strings.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-/*
-* Copyright (C) 2017 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*      http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
- -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="long_press_widget_to_add" msgid="4001616142797446267">"Yorliqni tanlab olish uchun bosib turing."</string>
-    <string name="long_accessible_way_to_add" msgid="2725225828389948328">"Ikki marta bosib va bosib turgan holatda yorliqni tanlang yoki maxsus amaldan foydalaning."</string>
-    <string name="widget_button_text" msgid="4221900832360456858">"Yorliqlar"</string>
-    <string name="widgets_bottom_sheet_title" msgid="3949835990909395998">"<xliff:g id="NAME">%1$s</xliff:g> ilovasi yorliqlari"</string>
-</resources>
diff --git a/res/drawable/ic_install_no_shadow.xml b/res/drawable/ic_install_no_shadow.xml
new file mode 100644
index 0000000..ffce22a
--- /dev/null
+++ b/res/drawable/ic_install_no_shadow.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:fillColor="?android:attr/textColorPrimary"
+        android:pathData="M19 9h-4V3H9v6H5l7 7 7-7zM5 18v2h14v-2H5z" />
+    <path
+        android:pathData="M0 0h24v24H0z" />
+</vector>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1197b1c..e9b00f6 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -90,6 +90,8 @@
     <string name="uninstall_drop_target_label">Uninstall</string>
     <!-- Label for app info drop target. [CHAR_LIMIT=20] -->
     <string name="app_info_drop_target_label">App info</string>
+    <!-- Label for install drop target. [CHAR_LIMIT=20] -->
+    <string name="install_drop_target_label">Install</string>
 
     <!-- Permissions: -->
     <skip />
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index f8d6498..bdeed4c 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -84,7 +84,6 @@
 import com.android.launcher3.util.LongArrayMap;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Thunk;
-import com.android.launcher3.util.VerticalFlingDetector;
 import com.android.launcher3.util.WallpaperOffsetInterpolator;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -571,33 +570,6 @@
         }
         // Add the first page
         CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0);
-        if (FeatureFlags.PULLDOWN_SEARCH) {
-            firstPage.setOnTouchListener(new VerticalFlingDetector(mLauncher) {
-                // detect fling when touch started from empty space
-                @Override
-                public boolean onTouch(View v, MotionEvent ev) {
-                    if (workspaceInModalState()) return false;
-                    if (shouldConsumeTouch(v)) return true;
-                    if (super.onTouch(v, ev)) {
-                        mLauncher.startSearch("", false, null, false);
-                        return true;
-                    }
-                    return false;
-                }
-            });
-            firstPage.setOnInterceptTouchListener(new VerticalFlingDetector(mLauncher) {
-                // detect fling when touch started from on top of the icons
-                @Override
-                public boolean onTouch(View v, MotionEvent ev) {
-                    if (shouldConsumeTouch(v)) return true;
-                    if (super.onTouch(v, ev)) {
-                        mLauncher.startSearch("", false, null, false);
-                        return true;
-                    }
-                    return false;
-                }
-            });
-        }
         // Always add a QSB on the first screen.
         if (qsb == null) {
             // In transposed layout, we add the QSB in the Grid. As workspace does not touch the
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 6a4cbcb..c88359b 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -52,8 +52,6 @@
     public static final boolean QSB_ON_FIRST_SCREEN = true;
     // When enabled the all-apps icon is not added to the hotseat.
     public static final boolean NO_ALL_APPS_ICON = true;
-    // When enabled fling down gesture on the first workspace triggers search.
-    public static final boolean PULLDOWN_SEARCH = false;
     // When enabled the status bar may show dark icons based on the top of the wallpaper.
     public static final boolean LIGHT_STATUS_BAR = false;
     // When enabled, icons not supporting {@link AdaptiveIconDrawable} will be wrapped in {@link FixedScaleDrawable}.
diff --git a/src/com/android/launcher3/popup/PopupDataProvider.java b/src/com/android/launcher3/popup/PopupDataProvider.java
index de9f25e..c921b4b 100644
--- a/src/com/android/launcher3/popup/PopupDataProvider.java
+++ b/src/com/android/launcher3/popup/PopupDataProvider.java
@@ -53,6 +53,7 @@
     private static final SystemShortcut[] SYSTEM_SHORTCUTS = new SystemShortcut[] {
             new SystemShortcut.AppInfo(),
             new SystemShortcut.Widgets(),
+            new SystemShortcut.Install()
     };
 
     private final Launcher mLauncher;
diff --git a/src/com/android/launcher3/popup/SystemShortcut.java b/src/com/android/launcher3/popup/SystemShortcut.java
index 6254d2d..a342500 100644
--- a/src/com/android/launcher3/popup/SystemShortcut.java
+++ b/src/com/android/launcher3/popup/SystemShortcut.java
@@ -1,6 +1,7 @@
 package com.android.launcher3.popup;
 
 import android.content.Context;
+import android.content.Intent;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
@@ -11,7 +12,10 @@
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
+import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.model.WidgetItem;
+import com.android.launcher3.util.InstantAppResolver;
+import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.widget.WidgetsBottomSheet;
 
@@ -95,4 +99,35 @@
             };
         }
     }
+
+    public static class Install extends SystemShortcut {
+        public Install() {
+            super(R.drawable.ic_install_no_shadow, R.string.install_drop_target_label);
+        }
+
+        @Override
+        public View.OnClickListener getOnClickListener(final Launcher launcher,
+                final ItemInfo itemInfo) {
+            boolean supportsWebUI = (itemInfo instanceof ShortcutInfo) &&
+                    ((ShortcutInfo) itemInfo).hasStatusFlag(ShortcutInfo.FLAG_SUPPORTS_WEB_UI);
+            boolean isInstantApp = false;
+            if (itemInfo instanceof com.android.launcher3.AppInfo) {
+                com.android.launcher3.AppInfo appInfo = (com.android.launcher3.AppInfo) itemInfo;
+                isInstantApp = InstantAppResolver.newInstance(launcher).isInstantApp(appInfo);
+            }
+            boolean enabled = supportsWebUI || isInstantApp;
+            if (!enabled) {
+                return null;
+            }
+            return new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    Intent intent = PackageManagerHelper.getMarketIntent(itemInfo
+                            .getTargetComponent().getPackageName());
+                    launcher.startActivitySafely(view, intent, itemInfo);
+                    AbstractFloatingView.closeAllOpenViews(launcher);
+                }
+            };
+        }
+    }
 }
diff --git a/src/com/android/launcher3/util/InstantAppResolver.java b/src/com/android/launcher3/util/InstantAppResolver.java
index e60d768..99ce7ca 100644
--- a/src/com/android/launcher3/util/InstantAppResolver.java
+++ b/src/com/android/launcher3/util/InstantAppResolver.java
@@ -19,6 +19,7 @@
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 
@@ -39,6 +40,10 @@
         return false;
     }
 
+    public boolean isInstantApp(AppInfo info) {
+        return false;
+    }
+
     public List<ApplicationInfo> getInstantApps() {
         return Collections.emptyList();
     }
diff --git a/src/com/android/launcher3/util/VerticalFlingDetector.java b/src/com/android/launcher3/util/VerticalFlingDetector.java
deleted file mode 100644
index 7236c2d..0000000
--- a/src/com/android/launcher3/util/VerticalFlingDetector.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.util;
-
-import android.content.Context;
-import android.view.MotionEvent;
-import android.view.VelocityTracker;
-import android.view.View;
-import android.view.ViewConfiguration;
-
-public class VerticalFlingDetector implements View.OnTouchListener {
-
-    private static final float CUSTOM_SLOP_MULTIPLIER = 2.2f;
-    private static final int SEC_IN_MILLIS = 1000;
-
-    private VelocityTracker mVelocityTracker;
-    private float mMinimumFlingVelocity;
-    private float mMaximumFlingVelocity;
-    private float mDownX, mDownY;
-    private boolean mShouldCheckFling;
-    private double mCustomTouchSlop;
-
-    public VerticalFlingDetector(Context context) {
-        ViewConfiguration vc = ViewConfiguration.get(context);
-        mMinimumFlingVelocity = vc.getScaledMinimumFlingVelocity();
-        mMaximumFlingVelocity = vc.getScaledMaximumFlingVelocity();
-        mCustomTouchSlop = CUSTOM_SLOP_MULTIPLIER * vc.getScaledTouchSlop();
-    }
-
-    @Override
-    public boolean onTouch(View v, MotionEvent ev) {
-        if (mVelocityTracker == null) {
-            mVelocityTracker = VelocityTracker.obtain();
-        }
-        mVelocityTracker.addMovement(ev);
-        switch (ev.getAction()) {
-            case MotionEvent.ACTION_DOWN:
-                mDownX = ev.getX();
-                mDownY = ev.getY();
-                mShouldCheckFling = false;
-                break;
-            case MotionEvent.ACTION_MOVE:
-                if (mShouldCheckFling) {
-                    break;
-                }
-                if (Math.abs(ev.getY() - mDownY) > mCustomTouchSlop &&
-                        Math.abs(ev.getY() - mDownY) > Math.abs(ev.getX() - mDownX)) {
-                    mShouldCheckFling = true;
-                }
-                break;
-            case MotionEvent.ACTION_UP:
-                if (mShouldCheckFling) {
-                    mVelocityTracker.computeCurrentVelocity(SEC_IN_MILLIS, mMaximumFlingVelocity);
-                    // only when fling is detected in down direction
-                    if (mVelocityTracker.getYVelocity() > mMinimumFlingVelocity) {
-                        cleanUp();
-                        return true;
-                    }
-                }
-                // fall through.
-            case MotionEvent.ACTION_CANCEL:
-                cleanUp();
-        }
-        return false;
-    }
-
-    private void cleanUp() {
-        if (mVelocityTracker == null) {
-            return;
-        }
-        mVelocityTracker.recycle();
-        mVelocityTracker = null;
-    }
-}