Fix overlapped problem in SuW two panes mode

- The previous preview page will overlap the right pane in RTL language.
- The root cause is the false value of the clipToPadding and
  clipChildren.
- Use the TTheme.DeviceDefault.Settings.

Fixes: 204955818
Test: manual test
Change-Id: I75c7f419cf93ebe9c4e9e3cb24835163a6b01e11

AndroidManifest.xml

@@ -1882,6 +1882,7 @@
 
         <activity
             android:name=".accessibility.AccessibilityScreenSizeForSetupWizardActivity"
+            android:theme="@android:style/Theme.DeviceDefault.Settings"
             android:exported="false"/>
 
         <activity

src/com/android/settings/display/PreviewPagerAdapter.java

@@ -109,10 +109,6 @@ public class PreviewPagerAdapter extends PagerAdapter {
         return (view == object);
     }
 
-    FrameLayout[] getPreviewFrames() {
-        return mPreviewFrames;
-    }
-
     boolean isAnimating() {
         return mAnimationCounter > 0;
     }

src/com/android/settings/display/PreviewSeekBarPreferenceFragment.java

@@ -264,12 +264,6 @@ public abstract class PreviewSeekBarPreferenceFragment extends SettingsPreferenc
         @Override
         public void onPageSelected(int position) {
             mPreviewPager.sendAccessibilityEvent(AccessibilityEvent.TYPE_ANNOUNCEMENT);
-            // To avoid displaying previous page on the left side in SUW landscape mode for
-            // large size.
-            if (position > 0) {
-                mPreviewPagerAdapter.getPreviewFrames()[position - 1].setVisibility(View.INVISIBLE);
-            }
-            mPreviewPagerAdapter.getPreviewFrames()[position].setVisibility(View.VISIBLE);
         }
     };