Make callers of CommandLine use it via the base:: namespace.

content/renderer/android/synchronous_compositor_factory.cc

 // Copyright 2013 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/renderer/android/synchronous_compositor_factory.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "content/public/common/content_switches.h"
 
 namespace content {
 
 namespace {
 SynchronousCompositorFactory* g_instance = NULL;
 }  // namespace
 
 // static
 void SynchronousCompositorFactory::SetInstance(
     SynchronousCompositorFactory* instance) {
   DCHECK(g_instance == NULL);
 
   // This feature only makes sense in single process mode.
-  CHECK(CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess));
+  CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kSingleProcess));
 
   g_instance = instance;
 }
 
 // static
 SynchronousCompositorFactory* SynchronousCompositorFactory::GetInstance() {
   return g_instance;
 }
 
 }  // namespace content