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

chrome/browser/signin/easy_unlock_service_browsertest_chromeos.cc

 // Copyright 2014 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/macros.h"
 #include "base/run_loop.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/login_manager_test.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
@@ skipping 96 matching lines @@
     mock_adapter_ = new testing::NiceMock<MockBluetoothAdapter>();
     SetUpBluetoothMock(mock_adapter_, is_bluetooth_adapter_present_);
 
     scoped_ptr<DBusThreadManagerSetter> dbus_setter =
         chromeos::DBusThreadManager::GetSetterForTesting();
     power_manager_client_ = new FakePowerManagerClient;
     dbus_setter->SetPowerManagerClient(
         scoped_ptr<PowerManagerClient>(power_manager_client_));
   }
 
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(
         proximity_auth::switches::kForceLoadEasyUnlockAppInTests);
   }
 
   Profile* profile() const { return browser()->profile(); }
 
   EasyUnlockService* service() const {
     return EasyUnlockService::Get(profile());
   }
 
@@ skipping 72 matching lines @@
   EXPECT_FALSE(HasEasyUnlockApp());
 #endif
 }
 
 class EasyUnlockServiceDisabledTest : public EasyUnlockServiceTest {
  public:
   EasyUnlockServiceDisabledTest() {}
   ~EasyUnlockServiceDisabledTest() override {}
 
   // InProcessBrowserTest:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(proximity_auth::switches::kDisableEasyUnlock);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockServiceDisabledTest);
 };
 
 IN_PROC_BROWSER_TEST_F(EasyUnlockServiceDisabledTest, Disabled) {
   EXPECT_FALSE(service()->IsAllowed());
 #if defined(GOOGLE_CHROME_BUILD)
@@ skipping 58 matching lines @@
   Profile* secondary_profile = ProfileHelper::Get()->GetProfileByUserIdHash(
       secondary_user->username_hash());
 
   EXPECT_TRUE(EasyUnlockService::Get(primary_profile)->IsAllowed());
   EXPECT_FALSE(EasyUnlockService::Get(secondary_profile)->IsAllowed());
 #if defined(GOOGLE_CHROME_BUILD)
   EXPECT_TRUE(HasEasyUnlockAppForProfile(primary_profile));
   EXPECT_FALSE(HasEasyUnlockAppForProfile(secondary_profile));
 #endif
 }