Convert URLLoader to the new proxy design

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 fff104e392f9e50193194b6c46d9ea79445c5f3a..b7b74f88e191166663921db128309544daec5985 100644
--- a/content/renderer/pepper/renderer_ppapi_host_impl.cc
+++ b/content/renderer/pepper/renderer_ppapi_host_impl.cc
@@ -53,7 +53,6 @@ RendererPpapiHost::CreateExternalPluginModule(
   return renderer_ppapi_host;
 }
 
-
 // Out-of-process constructor.
 RendererPpapiHostImpl::RendererPpapiHostImpl(
     PluginModule* module,
@@ -185,6 +184,12 @@ WebKit::WebPluginContainer* RendererPpapiHostImpl::GetContainerForInstance(
   return instance_object->container();
 }
 
+base::ProcessId RendererPpapiHostImpl::GetPluginPID() const {
+  if (dispatcher_)
+    return dispatcher_->channel()->peer_pid();
+  return base::kNullProcessId;
+}
+
 bool RendererPpapiHostImpl::HasUserGesture(PP_Instance instance) const {
   PluginInstance* instance_object = GetAndValidateInstance(instance);
   if (!instance_object)