diff --git a/Android.mk b/Android.mk
index 61851cf..a4044e2 100644
--- a/Android.mk
+++ b/Android.mk
@@ -11,6 +11,9 @@
 # Build the Settings APK
 include $(CLEAR_VARS)
 
+# See b/74756073.
+LOCAL_USE_R8=false
+
 LOCAL_PACKAGE_NAME := Settings
 LOCAL_PRIVATE_PLATFORM_APIS := true
 LOCAL_CERTIFICATE := platform
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index a94938e..903be0c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1166,6 +1166,17 @@
             </intent-filter>
         </activity-alias>
 
+        <activity android:name=".applications.InstalledAppOpenByDefaultPage"
+                  android:label="@string/application_info_label"
+                  android:permission="android.permission.OPEN_APPLICATION_DETAILS_OPEN_BY_DEFAULT_PAGE"
+                  android:exported="true">
+            <intent-filter android:priority="1">
+                <action android:name="android.settings.APPLICATION_DETAILS_SETTINGS_OPEN_BY_DEFAULT_PAGE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="package" />
+            </intent-filter>
+        </activity>
+
         <!-- Provide direct entry into manage apps showing running services. -->
         <activity android:name="Settings$RunningServicesActivity"
                 android:label="@string/runningservices_settings_title"
diff --git a/res/layout/usb_dialog_container.xml b/res/layout/usb_dialog_container.xml
deleted file mode 100644
index bc6399f..0000000
--- a/res/layout/usb_dialog_container.xml
+++ /dev/null
@@ -1,31 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-     Copyright (C) 2015 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.
--->
-
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingTop="10dp"
-    android:paddingBottom="5dp">
-
-    <LinearLayout
-        android:id="@+id/container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:paddingTop="20dp"
-        android:orientation="vertical" />
-
-</ScrollView>
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index 282a5121..b64882a 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -396,11 +396,6 @@
         android:order="700">
 
         <SwitchPreference
-            android:key="force_hw_ui"
-            android:title="@string/force_hw_ui"
-            android:summary="@string/force_hw_ui_summary" />
-
-        <SwitchPreference
             android:key="show_hw_screen_updates"
             android:title="@string/show_hw_screen_updates"
             android:summary="@string/show_hw_screen_updates_summary" />
diff --git a/res/xml/sim_lock_settings.xml b/res/xml/sim_lock_settings.xml
index 2b823f9..174e5c2 100644
--- a/res/xml/sim_lock_settings.xml
+++ b/res/xml/sim_lock_settings.xml
@@ -31,6 +31,7 @@
             android:dialogTitle="@string/sim_change_pin"
             android:dialogMessage="@string/sim_enter_old"
             android:positiveButtonText="@string/sim_enter_ok"
-            android:negativeButtonText="@string/sim_enter_cancel"/>
+            android:negativeButtonText="@string/sim_enter_cancel"
+            android:persistent="false"/>
 
 </PreferenceScreen>
diff --git a/src/com/android/settings/applications/InstalledAppOpenByDefaultPage.java b/src/com/android/settings/applications/InstalledAppOpenByDefaultPage.java
new file mode 100644
index 0000000..40eef25
--- /dev/null
+++ b/src/com/android/settings/applications/InstalledAppOpenByDefaultPage.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2018 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.settings.applications;
+
+import android.content.Intent;
+
+import com.android.settings.SettingsActivity;
+
+public class InstalledAppOpenByDefaultPage extends SettingsActivity {
+
+    @Override
+    public Intent getIntent() {
+        Intent modIntent = new Intent(super.getIntent());
+        modIntent.putExtra(EXTRA_SHOW_FRAGMENT, AppLaunchSettings.class.getName());
+        return modIntent;
+    }
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return AppLaunchSettings.class.getName().equals(fragmentName);
+    }
+}
diff --git a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
index 9666a6c..0d30f27 100644
--- a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
+++ b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
@@ -428,7 +428,6 @@
         controllers.add(new TransitionAnimationScalePreferenceController(context));
         controllers.add(new AnimatorDurationScalePreferenceController(context));
         controllers.add(new SecondaryDisplayPreferenceController(context));
-        controllers.add(new ForceGpuRenderingPreferenceController(context));
         controllers.add(new GpuViewUpdatesPreferenceController(context));
         controllers.add(new HardwareLayersUpdatesPreferenceController(context));
         controllers.add(new DebugGpuOverdrawPreferenceController(context));
diff --git a/src/com/android/settings/development/ForceGpuRenderingPreferenceController.java b/src/com/android/settings/development/ForceGpuRenderingPreferenceController.java
deleted file mode 100644
index 72074cb..0000000
--- a/src/com/android/settings/development/ForceGpuRenderingPreferenceController.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * 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.
- */
-
-package com.android.settings.development;
-
-import android.content.Context;
-import android.os.SystemProperties;
-import android.support.annotation.VisibleForTesting;
-import android.support.v14.preference.SwitchPreference;
-import android.support.v7.preference.Preference;
-
-import com.android.settings.core.PreferenceControllerMixin;
-import com.android.settingslib.development.DeveloperOptionsPreferenceController;
-import com.android.settingslib.development.SystemPropPoker;
-
-public class ForceGpuRenderingPreferenceController extends DeveloperOptionsPreferenceController
-        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
-
-    private static final String FORCE_HARDWARE_UI_KEY = "force_hw_ui";
-
-    @VisibleForTesting
-    static final String HARDWARE_UI_PROPERTY = "persist.sys.ui.hw";
-
-    public ForceGpuRenderingPreferenceController(Context context) {
-        super(context);
-    }
-
-    @Override
-    public String getPreferenceKey() {
-        return FORCE_HARDWARE_UI_KEY;
-    }
-
-    @Override
-    public boolean onPreferenceChange(Preference preference, Object newValue) {
-        final boolean isEnabled = (Boolean) newValue;
-        SystemProperties.set(HARDWARE_UI_PROPERTY,
-                isEnabled ? Boolean.toString(true) : Boolean.toString(false));
-        SystemPropPoker.getInstance().poke();
-        return true;
-    }
-
-    @Override
-    public void updateState(Preference preference) {
-        final boolean isEnabled = SystemProperties.getBoolean(HARDWARE_UI_PROPERTY,
-                false /* default */);
-        ((SwitchPreference) mPreference).setChecked(isEnabled);
-    }
-
-    @Override
-    protected void onDeveloperOptionsSwitchDisabled() {
-        super.onDeveloperOptionsSwitchDisabled();
-        SystemProperties.set(HARDWARE_UI_PROPERTY, Boolean.toString(false));
-        ((SwitchPreference) mPreference).setChecked(false);
-    }
-}
diff --git a/src/com/android/settings/localepicker/LocaleDragAndDropAdapter.java b/src/com/android/settings/localepicker/LocaleDragAndDropAdapter.java
index 0d8cbaf..a6cb6f5 100644
--- a/src/com/android/settings/localepicker/LocaleDragAndDropAdapter.java
+++ b/src/com/android/settings/localepicker/LocaleDragAndDropAdapter.java
@@ -29,6 +29,7 @@
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.CheckBox;
 import android.widget.CompoundButton;
 
 import com.android.internal.app.LocalePicker;
@@ -159,10 +160,13 @@
         dragCell.setShowCheckbox(mRemoveMode);
         dragCell.setShowMiniLabel(!mRemoveMode);
         dragCell.setShowHandle(!mRemoveMode && mDragEnabled);
-        dragCell.setChecked(mRemoveMode ? feedItem.getChecked() : false);
         dragCell.setTag(feedItem);
-        dragCell.getCheckbox()
-                .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+        CheckBox checkbox = dragCell.getCheckbox();
+        // clear listener before setChecked() in case another item already bind to
+        // current ViewHolder and checked event is triggered on stale listener mistakenly.
+        checkbox.setOnCheckedChangeListener(null);
+        checkbox.setChecked(mRemoveMode ? feedItem.getChecked() : false);
+        checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                     @Override
                     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                         LocaleStore.LocaleInfo feedItem =
diff --git a/tests/robotests/src/com/android/settings/development/ForceGpuRenderingPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/development/ForceGpuRenderingPreferenceControllerTest.java
deleted file mode 100644
index 3c4f297..0000000
--- a/tests/robotests/src/com/android/settings/development/ForceGpuRenderingPreferenceControllerTest.java
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * 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.
- */
-
-package com.android.settings.development;
-
-import static com.android.settings.development.ForceGpuRenderingPreferenceController.HARDWARE_UI_PROPERTY;
-import static com.google.common.truth.Truth.assertThat;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.os.SystemProperties;
-import android.support.v14.preference.SwitchPreference;
-import android.support.v7.preference.PreferenceScreen;
-
-import com.android.settings.testutils.SettingsRobolectricTestRunner;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.robolectric.RuntimeEnvironment;
-
-@RunWith(SettingsRobolectricTestRunner.class)
-public class ForceGpuRenderingPreferenceControllerTest {
-
-    @Mock
-    private SwitchPreference mPreference;
-    @Mock
-    private PreferenceScreen mPreferenceScreen;
-
-    private Context mContext;
-    private ForceGpuRenderingPreferenceController mController;
-
-    @Before
-    public void setup() {
-        MockitoAnnotations.initMocks(this);
-        mContext = RuntimeEnvironment.application;
-        mController = new ForceGpuRenderingPreferenceController(mContext);
-        when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
-            .thenReturn(mPreference);
-        mController.displayPreference(mPreferenceScreen);
-    }
-
-    @Test
-    public void onPreferenceChanged_settingEnabled_turnOnForceGpuRendering() {
-        mController.onPreferenceChange(mPreference, true /* new value */);
-
-        final boolean mode = SystemProperties.getBoolean(HARDWARE_UI_PROPERTY, false /* default */);
-
-        assertThat(mode).isTrue();
-    }
-
-    @Test
-    public void onPreferenceChanged_settingDisabled_turnOffForceGpuRendering() {
-        mController.onPreferenceChange(mPreference, false /* new value */);
-
-        final boolean mode = SystemProperties.getBoolean(HARDWARE_UI_PROPERTY, false /* default */);
-
-        assertThat(mode).isFalse();
-    }
-
-    @Test
-    public void updateState_settingEnabled_preferenceShouldBeChecked() {
-        SystemProperties.set(HARDWARE_UI_PROPERTY, Boolean.toString(true));
-        mController.updateState(mPreference);
-
-        verify(mPreference).setChecked(true);
-    }
-
-    @Test
-    public void updateState_settingDisabled_preferenceShouldNotBeChecked() {
-        SystemProperties.set(HARDWARE_UI_PROPERTY, Boolean.toString(false));
-        mController.updateState(mPreference);
-
-        verify(mPreference).setChecked(false);
-    }
-
-    @Test
-    public void onDeveloperOptionsDisabled_shouldDisablePreference() {
-        mController.onDeveloperOptionsDisabled();
-
-        final boolean mode = SystemProperties.getBoolean(HARDWARE_UI_PROPERTY, false /* default */);
-
-        assertThat(mode).isFalse();
-        verify(mPreference).setEnabled(false);
-        verify(mPreference).setChecked(false);
-    }
-}