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

chrome/browser/lifetime/browser_close_manager_browsertest.cc

 // Copyright 2013 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 <vector>
 
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 161 matching lines @@
                  disp,
                  content::DOWNLOAD_DANGER_TYPE_DANGEROUS_URL,
                  intermediate_path);
   }
 };
 
 class FakeBackgroundModeManager : public BackgroundModeManager {
  public:
   FakeBackgroundModeManager()
       : BackgroundModeManager(
-            CommandLine::ForCurrentProcess(),
+            base::CommandLine::ForCurrentProcess(),
             &g_browser_process->profile_manager()->GetProfileInfoCache()),
         suspended_(false) {}
 
   void SuspendBackgroundMode() override {
     BackgroundModeManager::SuspendBackgroundMode();
     suspended_ = true;
   }
 
   void ResumeBackgroundMode() override {
     BackgroundModeManager::ResumeBackgroundMode();
@@ skipping 20 matching lines @@
     InProcessBrowserTest::SetUpOnMainThread();
     SessionStartupPref::SetStartupPref(
         browser()->profile(), SessionStartupPref(SessionStartupPref::LAST));
     browsers_.push_back(browser());
     content::BrowserThread::PostTask(
         content::BrowserThread::IO,
         FROM_HERE,
         base::Bind(&chrome_browser_net::SetUrlRequestMocksEnabled, true));
   }
 
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     if (GetParam())
       command_line->AppendSwitch(switches::kEnableFastUnload);
 #if defined(OS_CHROMEOS)
     command_line->AppendSwitch(
         chromeos::switches::kIgnoreUserProfileMappingForTests);
 #endif
   }
 
   void CreateStalledDownload(Browser* browser) {
     content::DownloadTestObserverInProgress observer(
@@ skipping 712 matching lines @@
 
   chrome::CloseAllBrowsers();
   EXPECT_FALSE(browser_shutdown::IsTryingToQuit());
   EXPECT_TRUE(chrome::BrowserIterator().done());
   EXPECT_TRUE(IsBackgroundModeSuspended());
 }
 
 INSTANTIATE_TEST_CASE_P(BrowserCloseManagerWithBackgroundModeBrowserTest,
                         BrowserCloseManagerWithBackgroundModeBrowserTest,
                         testing::Bool());