Migrate weave-related classes from proximity_auth/ble to cryptauth/ble.

components/cryptauth/cryptauth_api_call_flow.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 "components/cryptauth/cryptauth_api_call_flow.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "components/proximity_auth/logging/logging.h"
 #include "net/url_request/url_fetcher.h"
 
@@ skipping 62 matching lines @@
   } else {
     error_message = kRequestFailedError;
   }
 
   std::string response;
   source->GetResponseAsString(&response);
   PA_LOG(INFO) << "API call failed:\n" << response;
   error_callback_.Run(error_message);
 }
 
-}  // proximity_auth
+}  // namespace cryptauth