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

chrome/browser/app_controller_mac.mm

 // 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 412 matching lines @@
   // Check if the user really wants to quit by employing the confirm-to-quit
   // mechanism.
   if (!browser_shutdown::IsTryingToQuit() &&
       [self applicationShouldTerminate:app] != NSTerminateNow)
     return NO;
 
   // Check for active apps. If quitting is prevented, only close browsers and
   // sessions.
   if (!browser_shutdown::IsTryingToQuit() && quitWithAppsController_.get() &&
       !quitWithAppsController_->ShouldQuit()) {
-    if (CommandLine::ForCurrentProcess()->HasSwitch(
+    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kHostedAppQuitNotification)) {
       return NO;
     }
 
     content::NotificationService::current()->Notify(
         chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST,
         content::NotificationService::AllSources(),
         content::NotificationService::NoDetails());
     // This will close all browser sessions.
     chrome::CloseAllBrowsers();
@@ skipping 936 matching lines @@
   // Return the profile of the last-used BrowserWindowController, if available.
   if (lastProfile_)
     return lastProfile_;
 
   // On first launch, use the logic that ChromeBrowserMain uses to determine
   // the initial profile.
   ProfileManager* profile_manager = g_browser_process->profile_manager();
   if (!profile_manager)
     return NULL;
 
-  return profile_manager->GetProfile(GetStartupProfilePath(
-      profile_manager->user_data_dir(),
-      *CommandLine::ForCurrentProcess()));
+  return profile_manager->GetProfile(
+      GetStartupProfilePath(profile_manager->user_data_dir(),
+                            *base::CommandLine::ForCurrentProcess()));
 }
 
 - (Profile*)safeLastProfileForNewWindows {
   Profile* profile = [self lastProfile];
 
   // Guest sessions must always be OffTheRecord. Use that when opening windows.
   if (profile->IsGuestSession())
     return profile->GetOffTheRecordProfile();
 
   return profile;
@@ skipping 19 matching lines @@
   }
 
   Browser* browser = chrome::GetLastActiveBrowser();
   // if no browser window exists then create one with no tabs to be filled in
   if (!browser) {
     browser = new Browser(Browser::CreateParams(
         [self lastProfile], chrome::HOST_DESKTOP_TYPE_NATIVE));
     browser->window()->Show();
   }
 
-  CommandLine dummy(CommandLine::NO_PROGRAM);
+  base::CommandLine dummy(base::CommandLine::NO_PROGRAM);
   chrome::startup::IsFirstRun first_run = first_run::IsChromeFirstRun() ?
       chrome::startup::IS_FIRST_RUN : chrome::startup::IS_NOT_FIRST_RUN;
   StartupBrowserCreatorImpl launch(base::FilePath(), dummy, first_run);
   launch.OpenURLsInBrowser(browser, false, urls, browser->host_desktop_type());
 }
 
 - (void)getUrl:(NSAppleEventDescriptor*)event
      withReply:(NSAppleEventDescriptor*)reply {
   NSString* urlStr = [[event paramDescriptorForKeyword:keyDirectObject]
                       stringValue];
@@ skipping 300 matching lines @@
 
 //---------------------------------------------------------------------------
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac