Modify Pepper CreateResourceHostFromHost to create multiple hosts.

content/renderer/pepper/renderer_ppapi_host_impl.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_RENDERER_PEPPER_RENDERER_PPAPI_HOST_IMPL_H_
 #define CONTENT_RENDERER_PEPPER_RENDERER_PPAPI_HOST_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
@@ skipping 74 matching lines @@
   virtual base::ProcessId GetPluginPID() const OVERRIDE;
   virtual bool HasUserGesture(PP_Instance instance) const OVERRIDE;
   virtual int GetRoutingIDForWidget(PP_Instance instance) const OVERRIDE;
   virtual gfx::Point PluginPointToRenderView(
       PP_Instance instance,
       const gfx::Point& pt) const OVERRIDE;
   virtual IPC::PlatformFileForTransit ShareHandleWithRemote(
       base::PlatformFile handle,
       bool should_close_source) OVERRIDE;
   virtual bool IsRunningInProcess() const OVERRIDE;
-  virtual void CreateBrowserResourceHost(
+  virtual void CreateBrowserResourceHosts(
       PP_Instance instance,
-      const IPC::Message& nested_msg,
-      const base::Callback<void(int)>& callback) const OVERRIDE;
+      const std::vector<IPC::Message>& nested_msgs,
+      const base::Callback<void(
+          const std::vector<int>&)>& callback) const OVERRIDE;
 
  private:
   RendererPpapiHostImpl(PluginModule* module,
                         ppapi::proxy::HostDispatcher* dispatcher,
                         const ppapi::PpapiPermissions& permissions);
   RendererPpapiHostImpl(PluginModule* module,
                         const ppapi::PpapiPermissions& permissions);
 
   // Retrieves the plugin instance object associated with the given PP_Instance
   // and validates that it is one of the instances associated with our module.
@@ skipping 16 matching lines @@
 
   // Whether the plugin is running in process.
   bool is_running_in_process_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererPpapiHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_RENDERER_PPAPI_HOST_IMPL_H_