aw: Fix hardware init/tear down in pop up flow

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 198 matching lines @@
   void SetAwAutofillManagerDelegate(jobject delegate);
 
   void SetJsOnlineProperty(JNIEnv* env, jobject obj, jboolean network_up);
   void TrimMemory(JNIEnv* env, jobject obj, jint level, jboolean visible);
 
  private:
   void InitDataReductionProxyIfNecessary();
   void InitAutofillIfNecessary(bool enabled);
 
   void InitializeHardwareDrawIfNeeded();
-  void InitializeHardwareDrawOnRenderThread();
-  void ReleaseHardwareDrawOnRenderThread();
 
   JavaObjectWeakGlobalRef java_ref_;
   scoped_ptr<content::WebContents> web_contents_;
   scoped_ptr<AwWebContentsDelegate> web_contents_delegate_;
   scoped_ptr<AwContentsClientBridge> contents_client_bridge_;
   scoped_ptr<AwRenderViewHostExt> render_view_host_ext_;
   scoped_ptr<FindHelper> find_helper_;
   scoped_ptr<IconHelper> icon_helper_;
   scoped_ptr<AwContents> pending_contents_;
   SharedRendererState shared_renderer_state_;
   BrowserViewRenderer browser_view_renderer_;
   scoped_ptr<HardwareRenderer> hardware_renderer_;
   scoped_ptr<AwPdfExporter> pdf_exporter_;
   scoped_ptr<PermissionRequestHandler> permission_request_handler_;
 
   // GURL is supplied by the content layer as requesting frame.
   // Callback is supplied by the content layer, and is invoked with the result
   // from the permission prompt.
   typedef std::pair<const GURL, base::Callback<void(bool)> > OriginCallback;
   // The first element in the list is always the currently pending request.
   std::list<OriginCallback> pending_geolocation_prompts_;
 
+  base::Lock render_thread_lock_;
   GLViewRendererManager::Key renderer_manager_key_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_