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

content/shell/renderer/layout_test/layout_test_render_process_observer.cc

 // Copyright (c) 2014 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/layout_test/layout_test_render_process_observer.h"
 
 #include "base/command_line.h"
 #include "content/public/common/content_client.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
@@ skipping 45 matching lines @@
   WebKitTestRunner* test_runner = WebKitTestRunner::Get(view);
   test_interfaces_->SetWebView(view->GetWebView(), test_runner->proxy());
   main_test_runner_ = test_runner;
 }
 
 void LayoutTestRenderProcessObserver::WebKitInitialized() {
   // We always expose GC to layout tests.
   std::string flags("--expose-gc");
   v8::V8::SetFlagsFromString(flags.c_str(), static_cast<int>(flags.size()));
 
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-    switches::kStableReleaseMode)) {
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kStableReleaseMode)) {
     WebRuntimeFeatures::enableTestOnlyFeatures(true);
   }
 
   test_interfaces_.reset(new WebTestInterfaces);
   test_interfaces_->ResetAll();
 }
 
 void LayoutTestRenderProcessObserver::OnRenderProcessShutdown() {
   test_interfaces_.reset();
 }
 
 bool LayoutTestRenderProcessObserver::OnControlMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(LayoutTestRenderProcessObserver, message)
     IPC_MESSAGE_HANDLER(ShellViewMsg_SetWebKitSourceDir, OnSetWebKitSourceDir)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void LayoutTestRenderProcessObserver::OnSetWebKitSourceDir(
     const base::FilePath& webkit_source_dir) {
   webkit_source_dir_ = webkit_source_dir;
 }
 
 }  // namespace content