aw: Destroy ContentViewCore and WebContents together

android_webview/native/aw_contents.h

 // Copyright (c) 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.
 
 #ifndef ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 
 #include <jni.h>
 #include <list>
 #include <string>
@@ skipping 215 matching lines @@
   void InitAutofillIfNecessary(bool enabled);
 
   void InitializeHardwareDrawIfNeeded();
   void ReleaseHardwareDrawIfNeeded();
 
   // Geolocation API support
   void ShowGeolocationPrompt(const GURL& origin, base::Callback<void(bool)>);
   void HideGeolocationPrompt(const GURL& origin);
 
   JavaObjectWeakGlobalRef java_ref_;
-  scoped_ptr<content::WebContents> web_contents_;
   scoped_ptr<AwWebContentsDelegate> web_contents_delegate_;
   scoped_ptr<AwContentsClientBridge> contents_client_bridge_;
+  scoped_ptr<content::WebContents> web_contents_;
   scoped_ptr<AwRenderViewHostExt> render_view_host_ext_;
   scoped_ptr<FindHelper> find_helper_;
   scoped_ptr<IconHelper> icon_helper_;
   scoped_ptr<AwContents> pending_contents_;
   BrowserViewRenderer browser_view_renderer_;
   // SharedRendererState is owned by BrowserViewRenderer.
   // So keep a raw pointer here.
   // TODO(hush): remove this pointer from AwContents.
   SharedRendererState* shared_renderer_state_;
   scoped_ptr<AwPdfExporter> pdf_exporter_;
@@ skipping 10 matching lines @@
   GLViewRendererManager::Key renderer_manager_key_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_