[Android] Switch to Gin Java Bridge implementation

content/browser/android/java/gin_java_bridge_dispatcher_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_
 
 #include <map>
 #include <set>
 
@@ skipping 54 matching lines @@
                    GinJavaBoundObject::ObjectID object_id,
                    const std::string& method_name,
                    IPC::Message* reply_msg);
   void OnInvokeMethod(RenderFrameHost* render_frame_host,
                       GinJavaBoundObject::ObjectID object_id,
                       const std::string& method_name,
                       const base::ListValue& arguments,
                       IPC::Message* reply_msg);
 
  private:
-  typedef std::set<RenderFrameHost*> RendererSet;
   void OnObjectWrapperDeleted(RenderFrameHost* render_frame_host,
                               GinJavaBoundObject::ObjectID object_id);
 
+  bool IsValidRenderFrameHost(RenderFrameHost* render_frame_host);
   void SendReply(RenderFrameHost* render_frame_host, IPC::Message* reply_msg);
   void SendMethods(RenderFrameHost* render_frame_host,
                    IPC::Message* reply_msg,
                    const std::set<std::string>& method_names);
   void SendHasMethodReply(RenderFrameHost* render_frame_host,
                           IPC::Message* reply_msg,
                           bool result);
   void ProcessMethodInvocationResult(
       RenderFrameHost* render_frame_host,
       IPC::Message* reply_msg,
@@ skipping 14 matching lines @@
                     size_t count);
 
   // Every time a GinJavaBoundObject backed by a real Java object is
   // created/destroyed, we insert/remove a strong ref to that Java object into
   // this set so that it doesn't get garbage collected while it's still
   // potentially in use. Although the set is managed native side, it's owned
   // and defined in Java so that pushing refs into it does not create new GC
   // roots that would prevent ContentViewCore from being garbage collected.
   JavaObjectWeakGlobalRef retained_object_set_;
   bool allow_object_contents_inspection_;
-  RendererSet renderers_;
   GinJavaBoundObject::ObjectMap objects_;
   typedef std::map<std::string, GinJavaBoundObject::ObjectID> NamedObjectMap;
   NamedObjectMap named_objects_;
 
   DISALLOW_COPY_AND_ASSIGN(GinJavaBridgeDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_