Pepper proxy: make the browser sender handle the proxy lock properly.

content/ppapi_plugin/ppapi_thread.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 CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
 #define CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
 
 #include <map>
 #include <string>
 
@@ skipping 28 matching lines @@
 
 class PpapiThread : public ChildThread,
                     public ppapi::proxy::PluginDispatcher::PluginDelegate,
                     public ppapi::proxy::PluginProxyDelegate {
  public:
   PpapiThread(const CommandLine& command_line, bool is_broker);
   virtual ~PpapiThread();
 
  private:
   // ChildThread overrides.
+  virtual bool Send(IPC::Message* msg) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
 
   // PluginDispatcher::PluginDelegate implementation.
   virtual std::set<PP_Instance>* GetGloballySeenInstanceIDSet() OVERRIDE;
   virtual base::MessageLoopProxy* GetIPCMessageLoop() OVERRIDE;
   virtual base::WaitableEvent* GetShutdownEvent() OVERRIDE;
   virtual IPC::PlatformFileForTransit ShareHandleWithRemote(
       base::PlatformFile handle,
       const IPC::SyncChannel& channel,
       bool should_close_source) OVERRIDE;
   virtual uint32 Register(
       ppapi::proxy::PluginDispatcher* plugin_dispatcher) OVERRIDE;
   virtual void Unregister(uint32 plugin_dispatcher_id) OVERRIDE;
 
   // PluginProxyDelegate.
   // SendToBrowser() is intended to be safe to use on another thread so
   // long as the main PpapiThread outlives it.
-  virtual bool SendToBrowser(IPC::Message* msg) OVERRIDE;
   virtual IPC::Sender* GetBrowserSender() OVERRIDE;
   virtual std::string GetUILanguage() OVERRIDE;
   virtual void PreCacheFont(const void* logfontw) OVERRIDE;
   virtual void SetActiveURL(const std::string& url) OVERRIDE;
 
   // Message handlers.
   void OnMsgLoadPlugin(const FilePath& path,
                        const ppapi::PpapiPermissions& permissions);
   void OnMsgCreateChannel(int renderer_id,
                           bool incognito);
@@ skipping 51 matching lines @@
   // Caches the handle to the peer process if this is a broker.
   base::win::ScopedHandle peer_handle_;
 #endif
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PpapiThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_