diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index db5a27a..ac46c82 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -442,8 +442,7 @@
             Trace.beginAsyncSection(DISPLAY_ALL_APPS_TRACE_METHOD_NAME,
                     DISPLAY_ALL_APPS_TRACE_COOKIE);
         }
-        Object traceToken = TraceHelper.INSTANCE.beginSection(ON_CREATE_EVT,
-                TraceHelper.FLAG_UI_EVENT);
+        TraceHelper.INSTANCE.beginSection(ON_CREATE_EVT);
         if (DEBUG_STRICT_MODE) {
             StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
                     .detectDiskReads()
@@ -576,7 +575,7 @@
                 LauncherOverlayPlugin.class, false /* allowedMultiple */);
 
         mRotationHelper.initialize();
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
 
         mUserChangedCallbackCloseable = UserCache.INSTANCE.get(this).addUserChangeListener(
                 () -> getStateManager().goToState(NORMAL));
@@ -1074,15 +1073,14 @@
 
     @Override
     protected void onStart() {
-        Object traceToken = TraceHelper.INSTANCE.beginSection(ON_START_EVT,
-                TraceHelper.FLAG_UI_EVENT);
+        TraceHelper.INSTANCE.beginSection(ON_START_EVT);
         super.onStart();
         if (!mDeferOverlayCallbacks) {
             mOverlayManager.onActivityStarted(this);
         }
 
         mAppWidgetHolder.setActivityStarted(true);
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
     }
 
     @Override
@@ -1253,8 +1251,7 @@
 
     @Override
     protected void onResume() {
-        Object traceToken = TraceHelper.INSTANCE.beginSection(ON_RESUME_EVT,
-                TraceHelper.FLAG_UI_EVENT);
+        TraceHelper.INSTANCE.beginSection(ON_RESUME_EVT);
         super.onResume();
 
         if (mDeferOverlayCallbacks) {
@@ -1264,7 +1261,7 @@
         }
 
         DragView.removeAllViews(this);
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
     }
 
     @Override
@@ -1652,7 +1649,7 @@
         if (Utilities.isRunningInTestHarness()) {
             Log.d(TestProtocol.PERMANENT_DIAG_TAG, "Launcher.onNewIntent: " + intent);
         }
-        Object traceToken = TraceHelper.INSTANCE.beginSection(ON_NEW_INTENT_EVT);
+        TraceHelper.INSTANCE.beginSection(ON_NEW_INTENT_EVT);
         super.onNewIntent(intent);
 
         boolean alreadyOnHome = hasWindowFocus() && ((intent.getFlags() &
@@ -1699,7 +1696,7 @@
             showAllAppsWorkTabFromIntent(alreadyOnHome);
         }
 
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
     }
 
     protected void toggleAllAppsFromIntent(boolean alreadyOnHome) {
@@ -2298,7 +2295,7 @@
      * Implementation of the method from LauncherModel.Callbacks.
      */
     public void startBinding() {
-        Object traceToken = TraceHelper.INSTANCE.beginSection("startBinding");
+        TraceHelper.INSTANCE.beginSection("startBinding");
         // Floating panels (except the full widget sheet) are associated with individual icons. If
         // we are starting a fresh bind, close all such panels as all the icons are about
         // to go away.
@@ -2316,7 +2313,7 @@
         if (mHotseat != null) {
             mHotseat.resetLayout(getDeviceProfile().isVerticalBarLayout());
         }
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
     }
 
     @Override
@@ -2569,7 +2566,7 @@
             return view;
         }
 
-        Object traceToken = TraceHelper.INSTANCE.beginSection("BIND_WIDGET_id=" + item.appWidgetId);
+        TraceHelper.INSTANCE.beginSection("BIND_WIDGET_id=" + item.appWidgetId);
 
         try {
             final LauncherAppWidgetProviderInfo appWidgetInfo;
@@ -2699,7 +2696,7 @@
             }
             prepareAppWidget(view, item);
         } finally {
-            TraceHelper.INSTANCE.endSection(traceToken);
+            TraceHelper.INSTANCE.endSection();
         }
 
         return view;
@@ -2792,7 +2789,7 @@
      * Implementation of the method from LauncherModel.Callbacks.
      */
     public void finishBindingItems(IntSet pagesBoundFirst) {
-        Object traceToken = TraceHelper.INSTANCE.beginSection("finishBindingItems");
+        TraceHelper.INSTANCE.beginSection("finishBindingItems");
         mWorkspace.restoreInstanceStateForRemainingPages();
 
         setWorkspaceLoading(false);
@@ -2817,7 +2814,7 @@
                 mDeviceProfile.inv.numFolderColumns * mDeviceProfile.inv.numFolderRows);
         getViewCache().setCacheSize(R.layout.folder_page, 2);
 
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
 
         mWorkspace.removeExtraEmptyScreen(true);
     }
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index d2a8174..73a06b6 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -201,7 +201,7 @@
             }
         }
 
-        Object traceToken = TraceHelper.INSTANCE.beginSection(TAG);
+        TraceHelper.INSTANCE.beginSection(TAG);
         LoaderMemoryLogger memoryLogger = new LoaderMemoryLogger();
         try (LauncherModel.LoaderTransaction transaction = mApp.getModel().beginLoader(this)) {
             List<ShortcutInfo> allShortcuts = new ArrayList<>();
@@ -325,7 +325,7 @@
             memoryLogger.printLogs();
             throw e;
         }
-        TraceHelper.INSTANCE.endSection(traceToken);
+        TraceHelper.INSTANCE.endSection();
     }
 
     public synchronized void stopLocked() {
diff --git a/src/com/android/launcher3/util/InstantAppResolver.java b/src/com/android/launcher3/util/InstantAppResolver.java
index 6f706d2..bdb5e77 100644
--- a/src/com/android/launcher3/util/InstantAppResolver.java
+++ b/src/com/android/launcher3/util/InstantAppResolver.java
@@ -42,14 +42,7 @@
         return false;
     }
 
-    public boolean isInstantApp(Context context, String packageName) {
-        PackageManager packageManager = context.getPackageManager();
-        try {
-            return isInstantApp(packageManager.getPackageInfo(packageName, 0).applicationInfo);
-        } catch (PackageManager.NameNotFoundException e) {
-            Log.e("InstantAppResolver", "Failed to determine whether package is instant app "
-                    + packageName, e);
-        }
+    public boolean isInstantApp(String packageName, int userId) {
         return false;
     }
 }
diff --git a/src/com/android/launcher3/util/PackageManagerHelper.java b/src/com/android/launcher3/util/PackageManagerHelper.java
index 1d6bc25..91203a7 100644
--- a/src/com/android/launcher3/util/PackageManagerHelper.java
+++ b/src/com/android/launcher3/util/PackageManagerHelper.java
@@ -164,13 +164,6 @@
         }
     }
 
-    public static Intent getStyleWallpapersIntent(Context context) {
-        return new Intent(Intent.ACTION_SET_WALLPAPER).setComponent(
-                new ComponentName(context.getString(R.string.wallpaper_picker_package),
-                    context.getString(R.string.custom_activity_picker)
-                ));
-    }
-
     /**
      * Starts the details activity for {@code info}
      */
diff --git a/src/com/android/launcher3/util/TraceHelper.java b/src/com/android/launcher3/util/TraceHelper.java
index c23df77..d5056ee 100644
--- a/src/com/android/launcher3/util/TraceHelper.java
+++ b/src/com/android/launcher3/util/TraceHelper.java
@@ -21,6 +21,8 @@
 
 import java.util.function.Supplier;
 
+import kotlin.random.Random;
+
 /**
  * A wrapper around {@link Trace} to allow better testing.
  *
@@ -36,54 +38,53 @@
     // Temporarily ignore blocking binder calls for this trace.
     public static final int FLAG_IGNORE_BINDERS = 1 << 1;
 
-    public static final int FLAG_CHECK_FOR_RACE_CONDITIONS = 1 << 2;
-
-    public static final int FLAG_UI_EVENT =
-            FLAG_ALLOW_BINDER_TRACKING | FLAG_CHECK_FOR_RACE_CONDITIONS;
-
     /**
      * Static instance of Trace helper, overridden in tests.
      */
     public static TraceHelper INSTANCE = new TraceHelper();
 
     /**
-     * @return a token to pass into {@link #endSection(Object)}.
+     * @see Trace#beginSection(String)
      */
-    public Object beginSection(String sectionName) {
-        return beginSection(sectionName, 0);
-    }
-
-    public Object beginSection(String sectionName, int flags) {
+    public void beginSection(String sectionName) {
         Trace.beginSection(sectionName);
-        return null;
     }
 
     /**
-     * @param token the token returned from {@link #beginSection(String, int)}
+     * @see Trace#endSection()
      */
-    public void endSection(Object token) {
+    public void endSection() {
         Trace.endSection();
     }
 
     /**
-     * Similar to {@link #beginSection} but doesn't add a trace section.
+     * @see Trace#beginAsyncSection(String, int)
+     * @return a SafeCloseable that can be used to end the session
      */
-    public Object beginFlagsOverride(int flags) {
-        return null;
+    public SafeCloseable beginAsyncSection(String sectionName) {
+        int cookie = Random.Default.nextInt();
+        Trace.beginAsyncSection(sectionName, cookie);
+        return () -> Trace.endAsyncSection(sectionName, cookie);
     }
 
-    public void endFlagsOverride(Object token) { }
+    /**
+     * Returns a SafeCloseable to temporarily ignore blocking binder calls.
+     */
+    public SafeCloseable allowIpcs(String rpcName) {
+        int cookie = Random.Default.nextInt();
+        Trace.beginAsyncSection(rpcName, cookie);
+        return () -> Trace.endAsyncSection(rpcName, cookie);
+    }
 
     /**
      * Temporarily ignore blocking binder calls for the duration of this {@link Supplier}.
+     *
+     * Note, new features should be designed to not rely on mainThread RPCs.
      */
     @MainThread
     public static <T> T allowIpcs(String rpcName, Supplier<T> supplier) {
-        Object traceToken = INSTANCE.beginSection(rpcName, FLAG_IGNORE_BINDERS);
-        try {
+        try (SafeCloseable c = INSTANCE.allowIpcs(rpcName)) {
             return supplier.get();
-        } finally {
-            INSTANCE.endSection(traceToken);
         }
     }
 }
diff --git a/src/com/android/launcher3/views/OptionsPopupView.java b/src/com/android/launcher3/views/OptionsPopupView.java
index aebf752..55febc7 100644
--- a/src/com/android/launcher3/views/OptionsPopupView.java
+++ b/src/com/android/launcher3/views/OptionsPopupView.java
@@ -55,7 +55,6 @@
 import com.android.launcher3.shortcuts.DeepShortcutView;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
-import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.widget.picker.WidgetsFullSheet;
 
 import java.util.ArrayList;
@@ -190,14 +189,9 @@
      */
     public static ArrayList<OptionItem> getOptions(Launcher launcher) {
         ArrayList<OptionItem> options = new ArrayList<>();
-        boolean styleWallpaperExists = styleWallpapersExists(launcher);
-        int resString = styleWallpaperExists
-                ? R.string.styles_wallpaper_button_text : R.string.wallpaper_button_text;
-        int resDrawable = styleWallpaperExists
-                ? R.drawable.ic_palette : R.drawable.ic_wallpaper;
         options.add(new OptionItem(launcher,
-                resString,
-                resDrawable,
+                R.string.styles_wallpaper_button_text,
+                R.drawable.ic_palette,
                 IGNORE,
                 OptionsPopupView::startWallpaperPicker));
         if (!WidgetsModel.GO_DISABLE_WIDGETS) {
@@ -274,12 +268,8 @@
                 .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)
                 .putExtra(EXTRA_WALLPAPER_OFFSET,
                         launcher.getWorkspace().getWallpaperOffsetForCenterPage())
-                .putExtra(EXTRA_WALLPAPER_LAUNCH_SOURCE, "app_launched_launcher");
-        if (!styleWallpapersExists(launcher)) {
-            intent.putExtra(EXTRA_WALLPAPER_FLAVOR, "wallpaper_only");
-        } else {
-            intent.putExtra(EXTRA_WALLPAPER_FLAVOR, "focus_wallpaper");
-        }
+                .putExtra(EXTRA_WALLPAPER_LAUNCH_SOURCE, "app_launched_launcher")
+                .putExtra(EXTRA_WALLPAPER_FLAVOR, "focus_wallpaper");
         String pickerPackage = launcher.getString(R.string.wallpaper_picker_package);
         if (!TextUtils.isEmpty(pickerPackage)) {
             intent.setPackage(pickerPackage);
@@ -322,9 +312,4 @@
             this.clickListener = clickListener;
         }
     }
-
-    private static boolean styleWallpapersExists(Context context) {
-        return context.getPackageManager().resolveActivity(
-                PackageManagerHelper.getStyleWallpapersIntent(context), 0) != null;
-    }
 }