Return errors from the Mojo network service using an enum.

mojo/services/html_viewer/weburlloader_impl.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 "mojo/services/html_viewer/weburlloader_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 105 matching lines @@
   }
 }
 
 void WebURLLoaderImpl::cancel() {
   url_loader_.reset();
   response_body_stream_.reset();
 
   URLResponsePtr failed_response(mojo::URLResponse::New());
   failed_response->url = mojo::String::From(url_);
   failed_response->error = mojo::NetworkError::New();
-  failed_response->error->code = net::ERR_ABORTED;
+  failed_response->error->code = mojo::NETWORK_CODE_ABORTED;
 
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(&WebURLLoaderImpl::OnReceivedResponse,
                  weak_factory_.GetWeakPtr(),
                  base::Passed(&failed_response)));
 }
 
 void WebURLLoaderImpl::setDefersLoading(bool defers_loading) {
   NOTIMPLEMENTED();
@@ skipping 20 matching lines @@
   }
 }
 
 void WebURLLoaderImpl::OnReceivedError(URLResponsePtr url_response) {
   blink::WebURLError web_error;
   web_error.domain = blink::WebString::fromUTF8(net::kErrorDomain);
   web_error.reason = url_response->error->code;
   web_error.unreachableURL = GURL(url_response->url);
   web_error.staleCopyInCache = false;
   web_error.isCancellation =
-      url_response->error->code == net::ERR_ABORTED ? true : false;
+      url_response->error->code == mojo::NETWORK_CODE_ABORTED ? true : false;
 
   client_->didFail(this, web_error);
 }
 
 void WebURLLoaderImpl::OnReceivedRedirect(URLResponsePtr url_response) {
   blink::WebURLRequest new_request;
   new_request.initialize();
   new_request.setURL(GURL(url_response->redirect_url));
   new_request.setHTTPMethod(
       blink::WebString::fromUTF8(url_response->redirect_method));
@@ skipping 38 matching lines @@
       MOJO_DEADLINE_INDEFINITE,
       base::Bind(&WebURLLoaderImpl::OnResponseBodyStreamReady,
                  weak_factory_.GetWeakPtr()));
 }
 
 void WebURLLoaderImpl::OnResponseBodyStreamReady(MojoResult result) {
   ReadMore();
 }
 
 }  // namespace html_viewer