ppapi: Use base::MessageLoop.

ppapi/shared_impl/resource_tracker.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 "ppapi/shared_impl/resource_tracker.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "ppapi/shared_impl/callback_tracker.h"
@@ skipping 68 matching lines @@
     LastPluginRefWasDeleted(i->second.first);
 
     // When we go from 1 to 0 plugin ref count, free the additional "real" ref
     // on its behalf. THIS WILL MOST LIKELY RELEASE THE OBJECT AND REMOVE IT
     // FROM OUR LIST.
     i->second.first->Release();
   }
 }
 
 void ResourceTracker::ReleaseResourceSoon(PP_Resource res) {
-  MessageLoop::current()->PostNonNestableTask(
+  base::MessageLoop::current()->PostNonNestableTask(
       FROM_HERE,
       RunWhileLocked(base::Bind(&ResourceTracker::ReleaseResource,
                                 weak_ptr_factory_.GetWeakPtr(),
                                 res)));
 }
 
 void ResourceTracker::DidCreateInstance(PP_Instance instance) {
   CheckThreadingPreconditions();
   // Due to the infrastructure of some tests, the instance is registered
   // twice in a few cases. It would be nice not to do that and assert here
@@ skipping 123 matching lines @@
   CHECK(object->pp_instance() || is_message_loop);
   CallbackTracker* callback_tracker =
       PpapiGlobals::Get()->GetCallbackTrackerForInstance(object->pp_instance());
   CHECK(callback_tracker || is_message_loop);
   if (callback_tracker)
     callback_tracker->PostAbortForResource(object->pp_resource());
   object->NotifyLastPluginRefWasDeleted();
 }
 
 }  // namespace ppapi