Standardize usage of virtual/override/final specifiers.

extensions/shell/browser/shell_browser_context.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 EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_CONTEXT_H_
 #define EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_CONTEXT_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "content/shell/browser/shell_browser_context.h"
 #include "storage/browser/quota/special_storage_policy.h"
 
 namespace net {
 class NetLog;
 }
 
 namespace extensions {
 
 class InfoMap;
 class ShellSpecialStoragePolicy;
 
 // The BrowserContext used by the content, apps and extensions systems in
 // app_shell.
 class ShellBrowserContext : public content::ShellBrowserContext {
  public:
   explicit ShellBrowserContext(net::NetLog* net_log);
-  virtual ~ShellBrowserContext();
+  ~ShellBrowserContext() override;
 
   // content::BrowserContext implementation.
-  virtual content::BrowserPluginGuestManager* GetGuestManager() override;
-  virtual storage::SpecialStoragePolicy* GetSpecialStoragePolicy() override;
+  content::BrowserPluginGuestManager* GetGuestManager() override;
+  storage::SpecialStoragePolicy* GetSpecialStoragePolicy() override;
 
   net::URLRequestContextGetter* CreateRequestContext(
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors,
       InfoMap* extension_info_map);
 
   // HACK: Pad the virtual function table so we trip an assertion if someone
   // tries to use |this| as a Profile.
   virtual void ProfileFunctionCallOnNonProfileBrowserContext1();
   virtual void ProfileFunctionCallOnNonProfileBrowserContext2();
@@ skipping 15 matching lines @@
   void InitURLRequestContextOnIOThread();
   net::NetLog* net_log_;
   scoped_refptr<storage::SpecialStoragePolicy> storage_policy_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellBrowserContext);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_CONTEXT_H_