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

chrome/browser/background/background_contents_service.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.
 
 #include "chrome/browser/background/background_contents_service.h"
 
 #include "apps/app_load_service.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 235 matching lines @@
 //       <appid_1>: { "url": <url1>, "name": <frame_name> },
 //       <appid_2>: { "url": <url2>, "name": <frame_name> },
 //         ... etc ...
 //    }
 const char kUrlKey[] = "url";
 const char kFrameNameKey[] = "name";
 
 int BackgroundContentsService::restart_delay_in_ms_ = 3000;  // 3 seconds.
 
 BackgroundContentsService::BackgroundContentsService(
-    Profile* profile, const CommandLine* command_line)
+    Profile* profile,
+    const base::CommandLine* command_line)
     : prefs_(NULL), extension_registry_observer_(this) {
   // Don't load/store preferences if the parent profile is incognito.
   if (!profile->IsOffTheRecord())
     prefs_ = profile->GetPrefs();
 
   // Listen for events to tell us when to load/unload persisted background
   // contents.
   StartObserving(profile);
 }
 
@@ skipping 503 matching lines @@
     bool user_gesture,
     bool* was_blocked) {
   Browser* browser = chrome::FindLastActiveWithProfile(
       Profile::FromBrowserContext(new_contents->GetBrowserContext()),
       chrome::GetActiveDesktop());
   if (browser) {
     chrome::AddWebContents(browser, NULL, new_contents, disposition,
                            initial_pos, user_gesture, was_blocked);
   }
 }