Using GURL in place of std::string for destination_url

content/renderer/media/webcontentdecryptionmodulesession_impl.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 "content/renderer/media/webcontentdecryptionmodulesession_impl.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 53 matching lines @@
   // OnSessionCreated() should only be called once, and the second check can be
   // removed.
   blink::WebString id = blink::WebString::fromUTF8(web_session_id);
   DCHECK(web_session_id_.isEmpty() || web_session_id_ == id)
       << "Session ID may not be changed once set.";
   web_session_id_ = id;
 }
 
 void WebContentDecryptionModuleSessionImpl::OnSessionMessage(
     const std::vector<uint8>& message,
-    const std::string& destination_url) {
-  client_->message(message.empty() ? NULL : &message[0],
-                   message.size(),
-                   GURL(destination_url));
+    const GURL& destination_url) {
+  client_->message(
+      message.empty() ? NULL : &message[0], message.size(), destination_url);
 }
 
 void WebContentDecryptionModuleSessionImpl::OnSessionReady() {
   client_->ready();
 }
 
 void WebContentDecryptionModuleSessionImpl::OnSessionClosed() {
   client_->close();
 }
 
 void WebContentDecryptionModuleSessionImpl::OnSessionError(
     media::MediaKeys::KeyError error_code,
     uint32 system_code) {
   client_->error(static_cast<Client::MediaKeyErrorCode>(error_code),
                  system_code);
 }
 
 }  // namespace content