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

components/proximity_auth/cryptauth/cryptauth_client.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/bind.h"
 #include "base/command_line.h"
 #include "components/proximity_auth/cryptauth/cryptauth_access_token_fetcher.h"
 #include "components/proximity_auth/cryptauth/cryptauth_api_call_flow.h"
 #include "components/proximity_auth/cryptauth/cryptauth_client.h"
 #include "components/proximity_auth/cryptauth/proto/cryptauth_api.pb.h"
@@ skipping 18 matching lines @@
 const char kToggleEasyUnlockPath[] = "deviceSync/toggleeasyunlock";
 const char kSetupEnrollmentPath[] = "enrollment/setupenrollment";
 const char kFinishEnrollmentPath[] = "enrollment/finishenrollment";
 
 // Query string of the API URL indicating that the response should be in a
 // serialized protobuf format.
 const char kQueryProtobuf[] = "?alt=proto";
 
 // Creates the full CryptAuth URL for endpoint to the API with |request_path|.
 GURL CreateRequestUrl(const std::string& request_path) {
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   GURL google_apis_url =
       GURL(command_line->HasSwitch(switches::kCryptAuthHTTPHost)
                ? command_line->GetSwitchValueASCII(switches::kCryptAuthHTTPHost)
                : kDefaultCryptAuthHTTPHost);
   return google_apis_url.Resolve(kCryptAuthPath + request_path +
                                  kQueryProtobuf);
 }
 
 }  // namespace
 
@@ skipping 110 matching lines @@
     return;
   }
   result_callback.Run(response);
 };
 
 void CryptAuthClient::OnApiCallFailed(const std::string& error_message) {
   error_callback_.Run(error_message);
 }
 
 }  // proximity_auth