Add an IPC to abort Stream construction.

content/child/webblobregistry_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/child/webblobregistry_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/shared_memory.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 171 matching lines @@
       data_ptr += chunk_size;
     }
   }
 }
 
 void WebBlobRegistryImpl::finalizeStream(const WebURL& url) {
   DCHECK(ChildThread::current());
   sender_->Send(new StreamHostMsg_FinishBuilding(url));
 }
 
+void WebBlobRegistryImpl::abortStream(const WebURL& url) {
+  DCHECK(ChildThread::current());
+  sender_->Send(new StreamHostMsg_AbortBuilding(url));
+}
+
 void WebBlobRegistryImpl::unregisterStreamURL(const WebURL& url) {
   DCHECK(ChildThread::current());
   sender_->Send(new StreamHostMsg_Remove(url));
 }
 
 }  // namespace content