Removes MessageLoop::Type checks in favor of IsCurrent on MessageLoops.

chrome/browser/jankometer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/jankometer.h"
 
 #include <limits>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 262 matching lines @@
  public:
   UIJankObserver(const char* thread_name,
                  TimeDelta excessive_duration,
                  bool watchdog_enable)
       : helper_(thread_name, excessive_duration, watchdog_enable) {}
 
   // Attaches the observer to the current thread's message loop. You can only
   // attach to the current thread, so this function can be invoked on another
   // thread to attach it.
   void AttachToCurrentThread() {
-    DCHECK_EQ(base::MessageLoop::current()->type(), base::MessageLoop::TYPE_UI);
+    DCHECK(base::MessageLoopForUI::IsCurrent());
     base::MessageLoopForUI::current()->AddObserver(this);
     base::MessageLoop::current()->AddTaskObserver(this);
   }
 
   // Detaches the observer to the current thread's message loop.
   void DetachFromCurrentThread() {
-    DCHECK_EQ(base::MessageLoop::current()->type(), base::MessageLoop::TYPE_UI);
+    DCHECK(base::MessageLoopForUI::IsCurrent());
     base::MessageLoop::current()->RemoveTaskObserver(this);
     base::MessageLoopForUI::current()->RemoveObserver(this);
   }
 
   virtual void WillProcessTask(const base::PendingTask& pending_task) OVERRIDE {
     if (!helper_.MessageWillBeMeasured())
       return;
     base::TimeTicks now = base::TimeTicks::Now();
     const base::TimeDelta queueing_time = now - pending_task.time_posted;
     helper_.StartProcessingTimers(queueing_time);
@@ skipping 117 matching lines @@
     delete ui_observer;
     ui_observer = NULL;
   }
   if (io_observer) {
     // IO thread can't be running when we remove observers.
     DCHECK((!g_browser_process) || !(g_browser_process->io_thread()));
     delete io_observer;
     io_observer = NULL;
   }
 }