Modify Pepper CreateResourceHostFromHost to create multiple hosts.

content/renderer/pepper/renderer_ppapi_host_impl.cc

 // 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.
 
 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/process/process_handle.h"
 #include "content/common/sandbox_util.h"
@@ skipping 207 matching lines @@
                                          base::GetCurrentProcId(),
                                          should_close_source);
   }
   return dispatcher_->ShareHandleWithRemote(handle, should_close_source);
 }
 
 bool RendererPpapiHostImpl::IsRunningInProcess() const {
   return is_running_in_process_;
 }
 
-void RendererPpapiHostImpl::CreateBrowserResourceHost(
+void RendererPpapiHostImpl::CreateBrowserResourceHosts(
     PP_Instance instance,
-    const IPC::Message& nested_msg,
-    const base::Callback<void(int)>& callback) const {
+    const std::vector<IPC::Message>& nested_msgs,
+    const base::Callback<void(const std::vector<int>&)>& callback) const {
   RenderView* render_view = GetRenderViewForInstance(instance);
   PepperBrowserConnection* browser_connection =
       PepperBrowserConnection::Get(render_view);
   if (!browser_connection) {
-    callback.Run(0);
+    callback.Run(std::vector<int>(nested_msgs.size(), 0));
   } else {
     browser_connection->SendBrowserCreate(module_->GetPluginChildId(),
                                           instance,
-                                          nested_msg,
+                                          nested_msgs,
                                           callback);
   }
 }
 
 PepperPluginInstanceImpl* RendererPpapiHostImpl::GetAndValidateInstance(
     PP_Instance pp_instance) const {
   PepperPluginInstanceImpl* instance =
       HostGlobals::Get()->GetInstance(pp_instance);
   if (!instance)
     return NULL;
   if (!instance->IsValidInstanceOf(module_))
     return NULL;
   return instance;
 }
 
 }  // namespace content