Adding a feature flag to disable icon overrides

Bug: 226388663
Test: Verified locally by disabling the feature
Change-Id: Icfbe790046209b15dbdc0e44dcf1a14f1f50de62

src/com/android/launcher3/config/FeatureFlags.java

@@ -261,6 +261,10 @@ public final class FeatureFlags {
     public static final BooleanFlag ENABLE_ONE_SEARCH_MOTION = new DeviceFlag(
             "ENABLE_ONE_SEARCH_MOTION", false, "Enables animations in OneSearch.");
 
+    public static final BooleanFlag USE_LOCAL_ICON_OVERRIDES = getDebugFlag(
+            "USE_LOCAL_ICON_OVERRIDES", true,
+            "Use inbuilt monochrome icons if app doesn't provide one");
+
     public static void initialize(Context context) {
         synchronized (sDebugFlags) {
             for (DebugFlag flag : sDebugFlags) {

src/com/android/launcher3/icons/LauncherIconProvider.java

@@ -23,6 +23,7 @@ import android.util.ArrayMap;
 import android.util.Log;
 
 import com.android.launcher3.R;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.Themes;
 
 import org.xmlpull.v1.XmlPullParser;
@@ -55,7 +56,8 @@ public class LauncherIconProvider extends IconProvider {
      */
     public void setIconThemeSupported(boolean isSupported) {
         mSupportsIconTheme = isSupported;
-        mThemedIconMap = isSupported ? null : DISABLED_MAP;
+        mThemedIconMap = isSupported && FeatureFlags.USE_LOCAL_ICON_OVERRIDES.get()
+                ? null : DISABLED_MAP;
     }
 
     @Override