chrome: Use base::MessageLoop. (Part 2)

chrome/browser/ui/gtk/tabs/tab_gtk.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/ui/gtk/tabs/tab_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
@@ skipping 24 matching lines @@
 
   return font->GetStringWidth(title);
 }
 
 }  // namespace
 
 class TabGtk::TabGtkObserverHelper {
  public:
   explicit TabGtkObserverHelper(TabGtk* tab)
       : tab_(tab) {
-    MessageLoopForUI::current()->AddObserver(tab_);
+    base::MessageLoopForUI::current()->AddObserver(tab_);
   }
 
   ~TabGtkObserverHelper() {
-    MessageLoopForUI::current()->RemoveObserver(tab_);
+    base::MessageLoopForUI::current()->RemoveObserver(tab_);
   }
 
  private:
   TabGtk* tab_;
 
   DISALLOW_COPY_AND_ASSIGN(TabGtkObserverHelper);
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 // TabGtk, public:
@@ skipping 130 matching lines @@
   return TRUE;
 }
 
 gboolean TabGtk::OnDragButtonReleased(GtkWidget* widget,
                                       GdkEventButton* button) {
   // We always get this event when gtk is releasing the grab and ending the
   // drag.  However, if the user ended the drag with space or enter, we don't
   // get a follow up event to tell us the drag has finished (either a
   // drag-failed or a drag-end).  So we post a task to manually end the drag.
   // If GTK+ does send the drag-failed or drag-end event, we cancel the task.
-  MessageLoop::current()->PostTask(
+  base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&TabGtk::EndDrag, drag_end_factory_.GetWeakPtr(), false));
   return TRUE;
 }
 
 void TabGtk::OnDragBegin(GtkWidget* widget, GdkDragContext* context) {
   GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 1, 1);
   gdk_pixbuf_fill(pixbuf, 0);
   gtk_drag_set_icon_pixbuf(context, pixbuf, 0, 0);
   g_object_unref(pixbuf);
@@ skipping 131 matching lines @@
 }
 
 void TabGtk::EndDrag(bool canceled) {
   // Make sure we only run EndDrag once by canceling any tasks that want
   // to call EndDrag.
   drag_end_factory_.InvalidateWeakPtrs();
 
   // We must let gtk clean up after we handle the drag operation, otherwise
   // there will be outstanding references to the drag widget when we try to
   // destroy it.
-  MessageLoop::current()->PostTask(
+  base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&TabGtk::DestroyDragWidget, destroy_factory_.GetWeakPtr()));
 
   if (last_mouse_down_) {
     gdk_event_free(last_mouse_down_);
     last_mouse_down_ = NULL;
   }
 
   // Notify the drag helper that we're done with any potential drag operations.
   // Clean up the drag helper, which is re-created on the next mouse press.
   delegate_->EndDrag(canceled);
 
   observer_.reset();
 }