added scale animation for context menu

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

Index: chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java
index cd508545aa7a47b1b2f4e3f3a30fdb72ef67c7fa..c2ddf51624140d22a10c738bf8c34b0192576852 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuHelper.java
@@ -121,6 +121,9 @@ public class ContextMenuHelper implements OnCreateContextMenuListener {
                     shareImageDirectly(ShareHelper.getLastShareComponentName());
                 }
             });
+            ((TabularContextMenuUi) menuUi)
+                    .setContentViewCore(
+                            ContentViewCore.fromWebContents(contentViewCore.getWebContents()));
             menuUi.displayMenu(mActivity, mCurrentContextMenuParams, items, mCallback, mOnMenuShown,
                     mOnMenuClosed);
             if (mCurrentContextMenuParams.isImage()) {
@@ -134,7 +137,7 @@ public class ContextMenuHelper implements OnCreateContextMenuListener {
             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()) {