Move Mus into chrome's process when running with --mus.

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index aa8fa9b89f30b8b5346cb10ad3302ffa60dbb203..7c4b7cdb180c75e9adf88a1fd222ebf240917490 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -958,8 +958,6 @@ int BrowserMainLoop::CreateThreads() {
 
   base::Thread::Options io_message_loop_options;
   io_message_loop_options.message_loop_type = base::MessageLoop::TYPE_IO;
-  base::Thread::Options ui_message_loop_options;
-  ui_message_loop_options.message_loop_type = base::MessageLoop::TYPE_UI;
 
   const bool redirect_nonUInonIO_browser_threads =
       GetContentClient()
@@ -1614,6 +1612,7 @@ void BrowserMainLoop::InitializeMemoryManagementComponent() {
 }
 
 bool BrowserMainLoop::InitializeToolkit() {
+  LOG(ERROR) << "BrowserMainLoop::InitializeToolkit()";
   TRACE_EVENT0("startup", "BrowserMainLoop::InitializeToolkit");
 
   // TODO(evan): this function is rather subtle, due to the variety
@@ -1642,6 +1641,7 @@ bool BrowserMainLoop::InitializeToolkit() {
   }
 #endif
 
+  LOG(ERROR) << 1;
   // Env creates the compositor. Aura widgets need the compositor to be created
   // before they can be initialized by the browser.
   env_ = aura::Env::CreateInstance(parameters_.env_mode);