Standardize usage of virtual/override/final in content/

content/test/plugin/plugin_execute_stream_javascript.h

 // Copyright (c) 2011 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 CONTENT_TEST_PLUGIN_PLUGIN_EXECUTE_STREAM_JAVASCRIPT_H_
 #define CONTENT_TEST_PLUGIN_PLUGIN_EXECUTE_STREAM_JAVASCRIPT_H_
 
 #include "base/compiler_specific.h"
 #include "content/test/plugin/plugin_test.h"
 
 namespace NPAPIClient {
 
 // This class tests executes the JavaScript given in the stream URL.
 class ExecuteStreamJavaScript : public PluginTest {
  public:
   // Constructor.
   ExecuteStreamJavaScript(NPP id, NPNetscapeFuncs *host_functions);
 
   //
   // NPAPI functions
   //
-  virtual NPError NewStream(NPMIMEType type, NPStream* stream,
-                            NPBool seekable, uint16* stype) override;
-  virtual int32   WriteReady(NPStream *stream) override;
-  virtual int32   Write(NPStream *stream, int32 offset, int32 len,
-                        void *buffer) override;
-  virtual NPError DestroyStream(NPStream *stream, NPError reason) override;
+  NPError NewStream(NPMIMEType type,
+                    NPStream* stream,
+                    NPBool seekable,
+                    uint16* stype) override;
+  int32 WriteReady(NPStream* stream) override;
+  int32 Write(NPStream* stream, int32 offset, int32 len, void* buffer) override;
+  NPError DestroyStream(NPStream* stream, NPError reason) override;
 };
 
 }  // namespace NPAPIClient
 
 #endif  // CONTENT_TEST_PLUGIN_PLUGIN_EXECUTE_STREAM_JAVASCRIPT_H_