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

chrome/browser/policy/cloud/cloud_policy_manager_browsertest.cc

 // Copyright (c) 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 "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/policy/cloud/test_request_interceptor.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 32 matching lines @@
 namespace policy {
 
 // Tests the cloud policy stack using a URLRequestJobFactory::ProtocolHandler
 // to intercept requests and produce canned responses.
 class CloudPolicyManagerTest : public InProcessBrowserTest {
  protected:
   CloudPolicyManagerTest() {}
   ~CloudPolicyManagerTest() override {}
 
   void SetUpInProcessBrowserTestFixture() override {
-    CommandLine* command_line = CommandLine::ForCurrentProcess();
+    base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
     command_line->AppendSwitchASCII(switches::kDeviceManagementUrl,
                                     "http://localhost");
   }
 
   void SetUpOnMainThread() override {
     ASSERT_TRUE(PolicyServiceIsEmpty(g_browser_process->policy_service()))
         << "Pre-existing policies in this machine will make this test fail.";
 
     interceptor_.reset(new TestRequestInterceptor(
         "localhost",
@@ skipping 129 matching lines @@
   const bool expect_reregister = true;
   interceptor_->PushJobCallback(
       TestRequestInterceptor::RegisterJob(expected_type, expect_reregister));
 
   EXPECT_FALSE(policy_manager()->core()->client()->is_registered());
   ASSERT_NO_FATAL_FAILURE(Register());
   EXPECT_TRUE(policy_manager()->core()->client()->is_registered());
 }
 
 }  // namespace policy