PPAPI: Refactor MessageChannel to prep for sync postMessae

content/renderer/pepper/renderer_ppapi_host_impl.cc

Index: content/renderer/pepper/renderer_ppapi_host_impl.cc
diff --git a/content/renderer/pepper/renderer_ppapi_host_impl.cc b/content/renderer/pepper/renderer_ppapi_host_impl.cc
index 22e7f46f3622564cc62abc03d83cdf2e82601b69..850399addb282cd265b73c53cc5e9a19cdbd9737 100644
--- a/content/renderer/pepper/renderer_ppapi_host_impl.cc
+++ b/content/renderer/pepper/renderer_ppapi_host_impl.cc
@@ -41,7 +41,9 @@ RendererPpapiHostImpl::RendererPpapiHostImpl(
     PluginModule* module,
     ppapi::proxy::HostDispatcher* dispatcher,
     const ppapi::PpapiPermissions& permissions)
-    : module_(module), dispatcher_(dispatcher) {
+    : module_(module),
+      dispatcher_(dispatcher),
+      is_external_plugin_host_(false) {
   // Hook the PpapiHost up to the dispatcher for out-of-process communication.
   ppapi_host_.reset(new ppapi::host::PpapiHost(dispatcher, permissions));
   ppapi_host_->AddHostFactoryFilter(scoped_ptr<ppapi::host::HostFactory>(
@@ -54,7 +56,7 @@ RendererPpapiHostImpl::RendererPpapiHostImpl(
 RendererPpapiHostImpl::RendererPpapiHostImpl(
     PluginModule* module,
     const ppapi::PpapiPermissions& permissions)
-    : module_(module), dispatcher_(NULL) {
+    : module_(module), dispatcher_(NULL), is_external_plugin_host_(false) {
   // Hook the host up to the in-process router.
   in_process_router_.reset(new PepperInProcessRouter(this));
   ppapi_host_.reset(new ppapi::host::PpapiHost(
@@ -125,6 +127,10 @@ PepperPluginInstanceImpl* RendererPpapiHostImpl::GetPluginInstanceImpl(
   return GetAndValidateInstance(instance);
 }
 
+bool RendererPpapiHostImpl::IsExternalPluginHost() const {
+  return is_external_plugin_host_;
+}
+
 ppapi::host::PpapiHost* RendererPpapiHostImpl::GetPpapiHost() {
   return ppapi_host_.get();
 }
@@ -227,6 +233,14 @@ bool RendererPpapiHostImpl::IsRunningInProcess() const {
   return is_running_in_process_;
 }
 
+std::string RendererPpapiHostImpl::GetPluginName() const {
+  return module_->name();
+}
+
+void RendererPpapiHostImpl::SetToExternalPluginHost() {
+  is_external_plugin_host_ = true;
+}
+
 void RendererPpapiHostImpl::CreateBrowserResourceHosts(
     PP_Instance instance,
     const std::vector<IPC::Message>& nested_msgs,