Hide fullscreen rotation jank

ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.ui.base;
 
 import android.annotation.TargetApi;
 import android.content.ClipData;
 import android.graphics.Bitmap;
 import android.os.Build;
@@ skipping 108 matching lines @@
 
     /**
      * Notify the client of the position of the bottom controls.
      * @param bottomControlsOffsetY The Y offset of the bottom controls in physical pixels.
      * @param bottomContentOffsetY The Y offset of the content in physical pixels.
      */
     @CalledByNative
     public void onBottomControlsChanged(float bottomControlsOffsetY, float bottomContentOffsetY) {}
 
     /**
+     * Instruct the client to clear the thumbnail cache.
+     */
+    @CalledByNative
+    public void clearThumbnailPlaceholder() {}
+
+    /**
      * Returns the bottom system window inset in pixels. The system window inset represents the area
      * of a full-screen window that is partially or fully obscured by the status bar, navigation
      * bar, IME or other system windows.
      * @return The bottom system window inset.
      */
     @CalledByNative
     public int getSystemWindowInsetBottom() {
         return 0;
     }
 
@@ skipping 42 matching lines @@
                 return this;
             }
 
             @Override
             public ViewGroup getContainerView() {
                 return mContainerView;
             }
         }.init(containerView);
     }
 }