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

chrome/browser/chromeos/file_manager/file_browser_handlers.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/chromeos/file_manager/file_browser_handlers.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 123 matching lines @@
       const FileBrowserHandler* handler = handler_iter->get();
       if (!handler->MatchesURL(lowercase_url))
         continue;
       // Filter out Files app from handling ZIP files via a handler, as it's
       // now handled by new ZIP unpacker extension based on File System Provider
       // API.
       const URLPattern zip_pattern(URLPattern::SCHEME_EXTENSION,
                                    "chrome-extension://*/*.zip");
       if (handler->extension_id() == kFileManagerAppId &&
           zip_pattern.MatchesURL(selected_file_url) &&
-          !CommandLine::ForCurrentProcess()->HasSwitch(
+          !base::CommandLine::ForCurrentProcess()->HasSwitch(
               chromeos::switches::kDisableNewZIPUnpacker)) {
         continue;
       }
       results.push_back(handler);
     }
   }
   return results;
 }
 
 // This class is used to execute a file browser handler task. Here's how this
@@ skipping 374 matching lines @@
       if (common_handlers.empty())
         return FileBrowserHandlerList();
     }
   }
 
   return common_handlers;
 }
 
 }  // namespace file_browser_handlers
 }  // namespace file_manager