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

chrome/browser/plugins/chrome_content_browser_client_plugins_part.cc

 // Copyright 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 "chrome/browser/plugins/chrome_content_browser_client_plugins_part.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/plugins/plugin_info_message_filter.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
@@ skipping 99 matching lines @@
 #else
   return false;
 #endif
 }
 
 bool ChromeContentBrowserClientPluginsPart::IsPluginAllowedToUseDevChannelAPIs(
     content::BrowserContext* browser_context,
     const GURL& url,
     const std::set<std::string>& allowed_dev_channel_origins) {
   // Allow access for tests.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnablePepperTesting)) {
     return true;
   }
 
 #if defined(ENABLE_EXTENSIONS)
   Profile* profile = Profile::FromBrowserContext(browser_context);
   const extensions::ExtensionSet* extension_set = NULL;
   if (profile) {
     extension_set =
         &extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
@@ skipping 13 matching lines @@
 }
 
 void ChromeContentBrowserClientPluginsPart::DidCreatePpapiPlugin(
     content::BrowserPpapiHost* browser_host) {
   browser_host->GetPpapiHost()->AddHostFactoryFilter(
       scoped_ptr<ppapi::host::HostFactory>(
           new chrome::ChromeBrowserPepperHostFactory(browser_host)));
 }
 
 }  // namespace plugins