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

content/shell/renderer/shell_render_view_observer.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/shell/renderer/shell_render_view_observer.h"
 
 #include "base/command_line.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "content/shell/common/shell_messages.h"
 #include "content/shell/common/shell_switches.h"
 #include "content/shell/renderer/ipc_echo.h"
 #include "third_party/WebKit/public/web/WebTestingSupport.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 namespace content {
 
 ShellRenderViewObserver::ShellRenderViewObserver(RenderView* render_view)
     : RenderViewObserver(render_view) {
 }
 
 ShellRenderViewObserver::~ShellRenderViewObserver() {
 }
 
 void ShellRenderViewObserver::DidClearWindowObject(
     blink::WebLocalFrame* frame) {
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kExposeInternalsForTesting)) {
     blink::WebTestingSupport::injectInternalsObject(frame);
   }
 
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kExposeIpcEcho)) {
     RenderView* view = render_view();
     if (!ipc_echo_)
       ipc_echo_.reset(new IPCEcho(view->GetWebView()->mainFrame()->document(),
                                   RenderThread::Get(), view->GetRoutingID()));
     ipc_echo_->Install(view->GetWebView()->mainFrame());
   }
 }
 
 bool ShellRenderViewObserver::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ShellRenderViewObserver, message)
     IPC_MESSAGE_HANDLER(ShellViewMsg_EchoPong, OnEchoPong)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void ShellRenderViewObserver::OnEchoPong(int id, const std::string& body) {
   ipc_echo_->DidRespondEcho(id, body.size());
 }
 
 }  // namespace content