Add home settings toggle featureflag for enablingTwoLineText

- Have shouldUseTwoLine() be decided with the home settings toggle value

bug:316027081
spec: https://www.figma.com/file/uMzPkNMZpb7EyfHDo8usIa/V-%E2%80%A2-Toast-Butter?type=design&node-id=405-384593&mode=design&t=UBkdeuNlAdRh2FGU-0
Test:
Video: https://drive.google.com/file/d/15VUhNVro2fiwv3SzMda1StiPb3PV1eMT/view?usp=sharing
before searchPreferenceScreen: https://screenshot.googleplex.com/3uqdMsZoGSBYb6c
after searchPreferenceScreen: https://drive.google.com/file/d/15dswiHRTnafyhgQA_tL2tRc7vHFWdHbZ/view?usp=sharing
before homeSettingsPage: https://screenshot.googleplex.com/7wsNevxGun2KCCB
after homeSettingsPage: https://drive.google.com/file/d/15m5bjEyewlNHI_h26aygHa7zrgZ5qDF6/view?usp=sharing
AppListSettingsPage: https://drive.google.com/file/d/15hl4ScHBOLgKv3M38HtatMxQw85pgl7t/view?usp=sharing
Flag: enableTwolineToggle DEVELOPMENT

Change-Id: I3ad133dd51dcb97e14ccded730e7737c5049261a

src/com/android/launcher3/allapps/BaseAllAppsAdapter.java

@@ -36,6 +36,8 @@ import androidx.annotation.Nullable;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.Flags;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.allapps.search.SearchAdapterProvider;
 import com.android.launcher3.config.FeatureFlags;
@@ -221,8 +223,11 @@ public abstract class BaseAllAppsAdapter<T extends Context & ActivityContext> ex
     public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
         switch (viewType) {
             case VIEW_TYPE_ICON:
-                int layout = !FeatureFlags.enableTwolineAllapps() ? R.layout.all_apps_icon
-                                : R.layout.all_apps_icon_twoline;
+                int layout = (FeatureFlags.enableTwolineAllapps() &&
+                        (!Flags.enableTwolineToggle() || (Flags.enableTwolineToggle()
+                                && LauncherPrefs.ENABLE_TWOLINE_ALLAPPS_TOGGLE.get(
+                                        mActivityContext.getApplicationContext()))))
+                        ? R.layout.all_apps_icon_twoline : R.layout.all_apps_icon;
                 BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
                         layout, parent, false);
                 icon.setLongPressTimeoutFactor(1f);