Mojo: Convert the remaining OVERRIDEs to override in mojo/.

mojo/services/html_viewer/weburlloader_impl.h

 // 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.
 
 #ifndef MOJO_SERVICES_HTML_VIEWER_WEBURLLOADER_IMPL_H_
 #define MOJO_SERVICES_HTML_VIEWER_WEBURLLOADER_IMPL_H_
 
+#include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/common/handle_watcher.h"
 #include "mojo/services/public/interfaces/network/url_loader.mojom.h"
 #include "third_party/WebKit/public/platform/WebURLLoader.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 
 namespace mojo {
 class NetworkService;
 
 // The concrete type of WebURLRequest::ExtraData.
 class WebURLRequestExtraData : public blink::WebURLRequest::ExtraData {
  public:
   WebURLRequestExtraData();
   virtual ~WebURLRequestExtraData();
 
   URLResponsePtr synthetic_response;
 };
 
 class WebURLLoaderImpl : public blink::WebURLLoader {
  public:
   explicit WebURLLoaderImpl(NetworkService* network_service);
 
  private:
   virtual ~WebURLLoaderImpl();
 
   // blink::WebURLLoader methods:
   virtual void loadSynchronously(
       const blink::WebURLRequest& request, blink::WebURLResponse& response,
-      blink::WebURLError& error, blink::WebData& data) OVERRIDE;
+      blink::WebURLError& error, blink::WebData& data) override;
   virtual void loadAsynchronously(
-      const blink::WebURLRequest&, blink::WebURLLoaderClient* client) OVERRIDE;
-  virtual void cancel() OVERRIDE;
-  virtual void setDefersLoading(bool defers_loading) OVERRIDE;
+      const blink::WebURLRequest&, blink::WebURLLoaderClient* client) override;
+  virtual void cancel() override;
+  virtual void setDefersLoading(bool defers_loading) override;
 
   void OnReceivedResponse(URLResponsePtr response);
   void OnReceivedError(URLResponsePtr response);
   void OnReceivedRedirect(URLResponsePtr response);
   void ReadMore();
   void WaitToReadMore();
   void OnResponseBodyStreamReady(MojoResult result);
 
   blink::WebURLLoaderClient* client_;
   GURL url_;
   URLLoaderPtr url_loader_;
   ScopedDataPipeConsumerHandle response_body_stream_;
   common::HandleWatcher handle_watcher_;
 
   base::WeakPtrFactory<WebURLLoaderImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebURLLoaderImpl);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_HTML_VIEWER_WEBURLLOADER_IMPL_H_