Broker out PPAPI handle duplication

content/ppapi_plugin/ppapi_thread.h

Index: content/ppapi_plugin/ppapi_thread.h
===================================================================
--- content/ppapi_plugin/ppapi_thread.h	(revision 136613)
+++ content/ppapi_plugin/ppapi_thread.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -22,6 +22,10 @@
 #include "ppapi/proxy/plugin_globals.h"
 #include "ppapi/proxy/plugin_proxy_delegate.h"
 
+#if defined(OS_WIN)
+#include "base/win/scoped_handle.h"
+#endif
+
 class CommandLine;
 class FilePath;
 class PpapiWebKitPlatformSupportImpl;
@@ -40,11 +44,16 @@
  private:
   // ChildThread overrides.
   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;
@@ -55,16 +64,14 @@
 
   // Message handlers.
   void OnMsgLoadPlugin(const FilePath& path);
-  void OnMsgCreateChannel(base::ProcessHandle host_process_handle,
-                          int renderer_id,
+  void OnMsgCreateChannel(int renderer_id,
                           bool incognito);
   void OnMsgSetNetworkState(bool online);
   void OnPluginDispatcherMessageReceived(const IPC::Message& msg);
 
   // Sets up the channel to the given renderer. On success, returns true and
   // fills the given ChannelHandle with the information from the new channel.
-  bool SetupRendererChannel(base::ProcessHandle host_process_handle,
-                            int renderer_id,
+  bool SetupRendererChannel(int renderer_id,
                             bool incognito,
                             IPC::ChannelHandle* handle);
 
@@ -103,6 +110,11 @@
   // The WebKitPlatformSupport implementation.
   scoped_ptr<PpapiWebKitPlatformSupportImpl> webkit_platform_support_;
 
+#if defined(OS_WIN)
+  // Caches the handle to the peer process if this is a broker.
+  base::win::ScopedHandle peer_handle_;
+#endif
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(PpapiThread);
 };