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

chrome/browser/extensions/external_provider_impl_unittest.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 "chrome/browser/extensions/external_provider_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 94 matching lines @@
         local_state_.registry());
 #endif
 
     ASSERT_TRUE(test_server_->InitializeAndWaitUntilReady());
     test_server_->RegisterRequestHandler(
         base::Bind(&ExternalProviderImplTest::HandleRequest,
                    base::Unretained(this)));
 
     test_extension_cache_.reset(new ExtensionCacheFake());
 
-    CommandLine* cmdline = CommandLine::ForCurrentProcess();
+    base::CommandLine* cmdline = base::CommandLine::ForCurrentProcess();
     cmdline->AppendSwitchASCII(switches::kAppsGalleryUpdateURL,
                                test_server_->GetURL(kManifestPath).spec());
   }
 
   void TearDown() override {
     TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
   }
 
  private:
   scoped_ptr<HttpResponse> HandleRequest(const HttpRequest& request) {
@@ skipping 56 matching lines @@
   service_->CheckForExternalUpdates();
   runner->Run();
 
   EXPECT_TRUE(service_->GetInstalledExtension(
       extension_misc::kInAppPaymentsSupportAppId));
   EXPECT_TRUE(service_->IsExtensionEnabled(
       extension_misc::kInAppPaymentsSupportAppId));
 }
 
 }  // namespace extensions