[Cronet] Upload support for async APIs

components/cronet/android/cronet_url_request_adapter.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 "cronet_url_request_adapter.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "components/cronet/android/cronet_url_request_context_adapter.h"
@@ skipping 40 matching lines @@
     const tracked_objects::Location& from_here,
     const base::Closure& task) {
   DCHECK(!IsOnNetworkThread());
   return context_->GetNetworkTaskRunner()->PostTask(from_here, task);
 }
 
 bool CronetURLRequestAdapter::IsOnNetworkThread() const {
   return context_->GetNetworkTaskRunner()->BelongsToCurrentThread();
 }
 
+void CronetURLRequestAdapter::SetUpload(
+    scoped_ptr<net::UploadDataStream> upload) {
+  DCHECK(!IsOnNetworkThread());
+  DCHECK(!upload_.get());

[mmenke, 2015/02/10 19:37:09]

nit:  This should probably just be DCHECK(!upload_);

[xunjieli, 2015/02/10 20:28:30]

Done.

+  upload_ = upload.Pass();
+}
+
 void CronetURLRequestAdapter::Start() {
   DCHECK(IsOnNetworkThread());
   VLOG(1) << "Starting chromium request: "
           << initial_url_.possibly_invalid_spec().c_str()
           << " priority: " << RequestPriorityToString(initial_priority_);
   url_request_ = context_->GetURLRequestContext()->CreateRequest(
       initial_url_, net::DEFAULT_PRIORITY, this, NULL);
   url_request_->SetLoadFlags(load_flags_);
   url_request_->set_method(initial_method_);
   url_request_->SetExtraRequestHeaders(initial_request_headers_);
   url_request_->SetPriority(initial_priority_);
+  if (upload_)
+    url_request_->set_upload(upload_.Pass());
   url_request_->Start();
 }
 
 void CronetURLRequestAdapter::FollowDeferredRedirect() {
   DCHECK(IsOnNetworkThread());
 
   url_request_->FollowDeferredRedirect();
 }
 
 void CronetURLRequestAdapter::ReadData() {
@@ skipping 73 matching lines @@
   DCHECK_EQ(request, url_request_);
   if (url_request_->status().is_success())
     return false;
   VLOG(1) << "Error " << url_request_->status().error()
           << " on chromium request: " << initial_url_.possibly_invalid_spec();
   delegate_->OnError(url_request_->status().error());
   return true;
 }
 
 }  // namespace cronet