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

chrome/browser/extensions/activity_log/activity_log_unittest.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 "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "chrome/browser/extensions/activity_log/activity_action_constants.h"
@@ skipping 43 matching lines @@
 
 namespace extensions {
 
 class ActivityLogTest : public ChromeRenderViewHostTestHarness {
  protected:
   void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
 #if defined OS_CHROMEOS
     test_user_manager_.reset(new chromeos::ScopedTestUserManager());
 #endif
-    CommandLine command_line(CommandLine::NO_PROGRAM);
-    CommandLine::ForCurrentProcess()->AppendSwitch(
+    base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableExtensionActivityLogging);
-    CommandLine::ForCurrentProcess()->AppendSwitch(
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableExtensionActivityLogTesting);
     extension_service_ = static_cast<TestExtensionSystem*>(
         ExtensionSystem::Get(profile()))->CreateExtensionService
             (&command_line, base::FilePath(), false);
     base::RunLoop().RunUntilIdle();
   }
 
   void TearDown() override {
 #if defined OS_CHROMEOS
     test_user_manager_.reset();
@@ skipping 326 matching lines @@
       kExtensionId,
       Action::ACTION_ANY,
       "",
       "",
       "",
       -1,
       base::Bind(ActivityLogTest::RetrieveActions_ArgUrlApiCalls));
 }
 
 }  // namespace extensions