Modify Pepper CreateResourceHostFromHost to create multiple hosts.

content/renderer/pepper/renderer_ppapi_host_impl.h

Index: content/renderer/pepper/renderer_ppapi_host_impl.h
diff --git a/content/renderer/pepper/renderer_ppapi_host_impl.h b/content/renderer/pepper/renderer_ppapi_host_impl.h
index 4ef47bd31d9f94d27b2c15e82bdd177353f13603..61488de1838262fb3ff5bf2e626553cbe844b92e 100644
--- a/content/renderer/pepper/renderer_ppapi_host_impl.h
+++ b/content/renderer/pepper/renderer_ppapi_host_impl.h
@@ -92,10 +92,11 @@ class RendererPpapiHostImpl : public RendererPpapiHost {
       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,