Add support for base::Closure in the MessageLoop.

chrome/renderer/renderer_main.cc

Index: chrome/renderer/renderer_main.cc
diff --git a/chrome/renderer/renderer_main.cc b/chrome/renderer/renderer_main.cc
index df75219ec31d530ba8635f4b7dd857d62cdd16b8..af9511f6ece3420bc26f07162469772cb31d5c1b 100644
--- a/chrome/renderer/renderer_main.cc
+++ b/chrome/renderer/renderer_main.cc
@@ -178,7 +178,7 @@ static void HandleRendererErrorTestParameters(const CommandLine& command_line) {
 
 // This is a simplified version of the browser Jankometer, which measures
 // the processing time of tasks on the render thread.
-class RendererMessageLoopObserver : public MessageLoop::TaskObserver {
+class RendererMessageLoopObserver : public MessageLoop::ClosureObserver {
  public:
   RendererMessageLoopObserver()
       : process_times_(base::Histogram::FactoryGet(
@@ -186,11 +186,11 @@ class RendererMessageLoopObserver : public MessageLoop::TaskObserver {
             1, 3600000, 50, base::Histogram::kUmaTargetedHistogramFlag)) {}
   virtual ~RendererMessageLoopObserver() {}
 
-  virtual void WillProcessTask(const Task* task) {
+  virtual void WillProcessClosure(base::TimeTicks time_posted) {
     begin_process_message_ = base::TimeTicks::Now();
   }
 
-  virtual void DidProcessTask(const Task* task) {
+  virtual void DidProcessClosure(base::TimeTicks time_posted) {
     if (begin_process_message_ != base::TimeTicks())
       process_times_->AddTime(base::TimeTicks::Now() - begin_process_message_);
   }
@@ -259,7 +259,7 @@ int RendererMain(const MainFunctionParams& parameters) {
   base::StatsScope<base::StatsCounterTimer>
       startup_timer(chrome::Counters::renderer_main());
 
-  RendererMessageLoopObserver task_observer;
+  RendererMessageLoopObserver closure_observer;
 #if defined(OS_MACOSX)
   // As long as we use Cocoa in the renderer (for the forseeable future as of
   // now; see http://crbug.com/13890 for info) we need to have a UI loop.
@@ -270,7 +270,7 @@ int RendererMain(const MainFunctionParams& parameters) {
   MessageLoop main_message_loop(RenderProcessImpl::InProcessPlugins() ?
               MessageLoop::TYPE_UI : MessageLoop::TYPE_DEFAULT);
 #endif
-  main_message_loop.AddTaskObserver(&task_observer);
+  main_message_loop.AddClosureObserver(&closure_observer);
 
   base::PlatformThread::SetName("CrRendererMain");