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

content/plugin/webplugin_accelerated_surface_proxy_mac.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.
 
 #import <OpenGL/OpenGL.h>
 
 #include "content/plugin/webplugin_accelerated_surface_proxy_mac.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/plugin/webplugin_proxy.h"
 #include "content/public/common/content_switches.h"
 #include "ui/surface/accelerated_surface_mac.h"
 #include "ui/surface/transport_dib.h"
 
 namespace content {
 
 WebPluginAcceleratedSurfaceProxy* WebPluginAcceleratedSurfaceProxy::Create(
     WebPluginProxy* plugin_proxy,
     gfx::GpuPreference gpu_preference) {
   // This code path shouldn't be taken if CA plugins are disabled
   // because the CA drawing model shouldn't be advertised.
-  DCHECK(!CommandLine::ForCurrentProcess()->HasSwitch(
+  DCHECK(!base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableCoreAnimationPlugins));
 
   AcceleratedSurface* surface = new AcceleratedSurface;
   // It's possible for OpenGL to fail to initialize (e.g., if an incompatible
   // mode is forced via flags), so handle that gracefully.
   if (!surface->Initialize(NULL, true, gpu_preference)) {
     delete surface;
     return NULL;
   }
 
@@ skipping 39 matching lines @@
 
 void WebPluginAcceleratedSurfaceProxy::EndDrawing() {
   if (!surface_)
     return;
 
   surface_->SwapBuffers();
   plugin_proxy_->AcceleratedPluginSwappedIOSurface();
 }
 
 }  // namespace content