added scale animation for context menu

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java

 // Copyright 2013 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.chrome.browser.contextmenu;
 
 import android.app.Activity;
 import android.content.ComponentName;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
@@ skipping 103 matching lines @@
         if (ChromeFeatureList.isEnabled(ChromeFeatureList.CUSTOM_CONTEXT_MENU)) {
             List<Pair<Integer, List<ContextMenuItem>>> items =
                     mPopulator.buildContextMenu(null, mActivity, mCurrentContextMenuParams);
 
             final ContextMenuUi menuUi = new TabularContextMenuUi(new Runnable() {
                 @Override
                 public void run() {
                     shareImageDirectly(ShareHelper.getLastShareComponentName());
                 }
             });
+            ((TabularContextMenuUi) menuUi)

[Theresa, 2017/05/24 17:53:33]

Instead of casting here, let's change line 118 to:

final TabularContextMenuUi menuUi = ...

[Daniel Park, 2017/05/24 19:44:38]

Done.

+                    .setRenderCoordinates(contentViewCore.getRenderCoordinates());
             menuUi.displayMenu(mActivity, mCurrentContextMenuParams, items, mCallback, mOnMenuShown,
                     mOnMenuClosed);
             if (mCurrentContextMenuParams.isImage()) {
                 getThumbnail(new Callback<Bitmap>() {
                     @Override
                     public void onResult(Bitmap result) {
                         ((TabularContextMenuUi) menuUi).onImageThumbnailRetrieved(result);
                     }
                 });
             }
             return;
         }
 
-        // The Platform Context Menu requires the listener within this hepler since this helper and
+        // The Platform Context Menu requires the listener within this helper since this helper and
         // provides context menu for us to show.
         view.setOnCreateContextMenuListener(this);
         if (view.showContextMenu()) {
             mOnMenuShown.run();
             windowAndroid.addContextMenuCloseListener(new OnCloseContextMenuListener() {
                 @Override
                 public void onContextMenuClosed() {
                     mOnMenuClosed.run();
                     windowAndroid.removeContextMenuCloseListener(this);
                 }
@@ skipping 84 matching lines @@
     }
 
     private native WebContents nativeGetJavaWebContents(long nativeContextMenuHelper);
     private native void nativeOnStartDownload(
             long nativeContextMenuHelper, boolean isLink, boolean isDataReductionProxyEnabled);
     private native void nativeSearchForImage(long nativeContextMenuHelper);
     private native void nativeRetrieveImage(
             long nativeContextMenuHelper, Callback<byte[]> callback, int maxSizePx);
     private native void nativeOnContextMenuClosed(long nativeContextMenuHelper);
 }