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

chrome/browser/thumbnails/thumbnail_service_impl.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/thumbnails/thumbnail_service_impl.h"
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/time/time.h"
 #include "chrome/browser/history/history_service.h"
@@ skipping 11 matching lines @@
 
 // The thumbnail size in DIP.
 const int kThumbnailWidth = 212;
 const int kThumbnailHeight = 142;
 
 // True if thumbnail retargeting feature is enabled (Finch/flags).
 bool IsThumbnailRetargetingEnabled() {
   if (!chrome::IsInstantExtendedAPIEnabled())
     return false;
 
-  return CommandLine::ForCurrentProcess()->HasSwitch(
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableThumbnailRetargeting);
 }
 
 void AddForcedURLOnUIThread(scoped_refptr<history::TopSites> top_sites,
                             const GURL& url) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (top_sites.get() != NULL)
     top_sites->AddForcedURL(url, base::Time::Now());
 }
@@ skipping 76 matching lines @@
 }
 
 void ThumbnailServiceImpl::ShutdownOnUIThread() {
   // Since each call uses its own scoped_refptr, we can just clear the reference
   // here by assigning null. If another call is completed, it added its own
   // reference.
   top_sites_ = NULL;
 }
 
 }  // namespace thumbnails