WIP attempt to replace StartWorker/StopWorker IPCs with a new mojo EmbeddedWorker service.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index d39b8cb3c0fd2c4b964de902dc3903eadb62b8dc..454c64a8205d8453fa6f89cb4061e0301cf70355 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -110,7 +110,7 @@
 #include "content/renderer/render_view_impl.h"
 #include "content/renderer/renderer_blink_platform_impl.h"
 #include "content/renderer/scheduler/resource_dispatch_throttler.h"
-#include "content/renderer/service_worker/embedded_worker_dispatcher.h"
+#include "content/renderer/service_worker/embedded_worker_impl.h"
 #include "content/renderer/service_worker/service_worker_context_client.h"
 #include "content/renderer/service_worker/service_worker_context_message_filter.h"
 #include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
@@ -657,7 +657,6 @@ void RenderThreadImpl::Init() {
   channel()->SetListenerTaskRunner(renderer_scheduler_->DefaultTaskRunner());
   main_thread_cache_storage_dispatcher_.reset(
       new CacheStorageDispatcher(thread_safe_sender()));
-  embedded_worker_dispatcher_.reset(new EmbeddedWorkerDispatcher());
 
   // Note: This may reorder messages from the ResourceDispatcher with respect to
   // other subsystems.
@@ -827,6 +826,8 @@ void RenderThreadImpl::Init() {
       base::Bind(CreateRenderFrameSetup));
   service_registry()->AddService<EmbeddedWorkerSetup>(
       base::Bind(CreateEmbeddedWorkerSetup));
+  service_registry()->AddService<EmbeddedWorker>(base::Bind(
+      &EmbeddedWorkerImpl::Create, make_scoped_refptr(thread_safe_sender())));
 
   TRACE_EVENT_END_ETW("RenderThreadImpl::Init", 0, "");
 }
@@ -905,11 +906,6 @@ void RenderThreadImpl::Shutdown() {
     input_event_filter_ = NULL;
   }
 
-  // RemoveEmbeddedWorkerRoute may be called while deleting
-  // EmbeddedWorkerDispatcher. So it must be deleted before deleting
-  // RenderThreadImpl.
-  embedded_worker_dispatcher_.reset();
-
   // Ramp down IDB before we ramp down WebKit (and V8), since IDB classes might
   // hold pointers to V8 objects (e.g., via pending requests).
   main_thread_indexed_db_dispatcher_.reset();
@@ -1647,8 +1643,7 @@ bool RenderThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
 
   // Some messages are handled by delegates.
   if (appcache_dispatcher_->OnMessageReceived(msg) ||
-      dom_storage_dispatcher_->OnMessageReceived(msg) ||
-      embedded_worker_dispatcher_->OnMessageReceived(msg)) {
+      dom_storage_dispatcher_->OnMessageReceived(msg)) {
     return true;
   }