Revert of Add Java wrapper for RenderFrameHost

content/public/android/java/src/org/chromium/content_public/browser/WebContents.java

 // Copyright 2014 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.content_public.browser;
 
 import android.graphics.Bitmap;
 import android.graphics.Rect;
 import android.os.Handler;
 import android.os.Parcelable;
@@ skipping 41 matching lines @@
      * @return Whether or not the native object associated with this WebContent is destroyed.
      */
     boolean isDestroyed();
 
     /**
      * @return The navigation controller associated with this WebContents.
      */
     NavigationController getNavigationController();
 
     /**
-     * @return  The main frame associated with this WebContents.
-     */
-    RenderFrameHost getMainFrame();
-
-    /**
      * @return The title for the current visible page.
      */
     String getTitle();
 
     /**
      * @return The URL for the current visible page.
      */
     String getVisibleUrl();
 
     /**
@@ skipping 314 matching lines @@
     public void simulateRendererKilledForTesting(boolean wasOomProtected);
 
     /**
      * Notifies the WebContents about the new persistent video status. It should be called whenever
      * the value changes.
      *
      * @param value Whether there is a persistent video associated with this WebContents.
      */
     public void setHasPersistentVideo(boolean value);
 }