chrome: Use base::MessageLoop. (Part 3)

chrome/browser/notifications/balloon_collection_impl.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/notifications/balloon_collection_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "chrome/browser/notifications/balloon.h"
@@ skipping 217 matching lines @@
                                       (*iter)->GetViewSize());
     bounds.Union(balloon_box);
   }
 
   return bounds;
 }
 
 #if USE_OFFSETS
 void BalloonCollectionImpl::AddMessageLoopObserver() {
   if (!added_as_message_loop_observer_) {
-    MessageLoopForUI::current()->AddObserver(this);
+    base::MessageLoopForUI::current()->AddObserver(this);
     added_as_message_loop_observer_ = true;
   }
 }
 
 void BalloonCollectionImpl::RemoveMessageLoopObserver() {
   if (added_as_message_loop_observer_) {
-    MessageLoopForUI::current()->RemoveObserver(this);
+    base::MessageLoopForUI::current()->RemoveObserver(this);
     added_as_message_loop_observer_ = false;
   }
 }
 
 void BalloonCollectionImpl::CancelOffsets() {
   reposition_factory_.InvalidateWeakPtrs();
 
   // Unhook from listening to all UI events.
   RemoveMessageLoopObserver();
 
   const Balloons& balloons = base_.balloons();
   for (Balloons::const_iterator it = balloons.begin();
        it != balloons.end();
        ++it)
     (*it)->set_offset(gfx::Vector2d());
 
   PositionBalloons(true);
 }
 
 void BalloonCollectionImpl::HandleMouseMoveEvent() {
   if (!IsCursorInBalloonCollection()) {
     // Mouse has left the region.  Schedule a reposition after
     // a short delay.
     if (!reposition_factory_.HasWeakPtrs()) {
-      MessageLoop::current()->PostDelayedTask(
+      base::MessageLoop::current()->PostDelayedTask(
           FROM_HERE,
           base::Bind(&BalloonCollectionImpl::CancelOffsets,
                      reposition_factory_.GetWeakPtr()),
           base::TimeDelta::FromMilliseconds(kRepositionDelayMs));
     }
   } else {
     // Mouse moved back into the region.  Cancel the reposition.
     reposition_factory_.InvalidateWeakPtrs();
   }
 }
@@ skipping 197 matching lines @@
       gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().work_area();
 #endif
   if (work_area_ != new_work_area) {
     work_area_.SetRect(new_work_area.x(), new_work_area.y(),
                        new_work_area.width(), new_work_area.height());
     changed = true;
   }
 
   return changed;
 }