content: Use base::MessageLoop.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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 "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 999 matching lines @@
 
   if (event.type == WebInputEvent::MouseLeave) {
     [cocoa_view_ setToolTipAtMousePoint:nil];
     tooltip_text_.clear();
   }
 }
 
 void RenderWidgetHostViewMac::KillSelf() {
   if (!weak_factory_.HasWeakPtrs()) {
     [cocoa_view_ setHidden:YES];
-    MessageLoop::current()->PostTask(FROM_HERE,
+    base::MessageLoop::current()->PostTask(FROM_HERE,
         base::Bind(&RenderWidgetHostViewMac::ShutdownHost,
                    weak_factory_.GetWeakPtr()));
   }
 }
 
 bool RenderWidgetHostViewMac::PostProcessEventForPluginIme(
     const NativeWebKeyboardEvent& event) {
   // Check WebInputEvent type since multiple types of events can be sent into
   // WebKit for the same OS event (e.g., RawKeyDown and Char), so filtering is
   // necessary to avoid double processing.
@@ skipping 2339 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end