Standardize usage of virtual/override/final in content/browser/

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 2012 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 293 matching lines @@
 // NOTE: changes to this class need to be reviewed by the security team.
 class RendererSandboxedProcessLauncherDelegate
     : public SandboxedProcessLauncherDelegate {
  public:
   explicit RendererSandboxedProcessLauncherDelegate(IPC::ChannelProxy* channel)
 #if defined(OS_POSIX)
       : ipc_fd_(channel->TakeClientFileDescriptor())
 #endif  // OS_POSIX
   {}
 
-  virtual ~RendererSandboxedProcessLauncherDelegate() {}
+  ~RendererSandboxedProcessLauncherDelegate() override {}
 
 #if defined(OS_WIN)
   virtual void PreSpawnTarget(sandbox::TargetPolicy* policy,
                               bool* success) {
     AddBaseHandleClosePolicy(policy);
     GetContentClient()->browser()->PreSpawnRenderer(policy, success);
   }
 
 #elif defined(OS_POSIX)
-  virtual bool ShouldUseZygote() override {
+  bool ShouldUseZygote() override {
     const base::CommandLine& browser_command_line =
         *base::CommandLine::ForCurrentProcess();
     base::CommandLine::StringType renderer_prefix =
         browser_command_line.GetSwitchValueNative(switches::kRendererCmdPrefix);
     return renderer_prefix.empty();
   }
-  virtual base::ScopedFD TakeIpcFd() override {
-    return ipc_fd_.Pass();
-  }
+  base::ScopedFD TakeIpcFd() override { return ipc_fd_.Pass(); }
 #endif  // OS_WIN
 
  private:
 #if defined(OS_POSIX)
   base::ScopedFD ipc_fd_;
 #endif  // OS_POSIX
 };
 
 const char kSessionStorageHolderKey[] = "kSessionStorageHolderKey";
 
 class SessionStorageHolder : public base::SupportsUserData::Data {
  public:
   SessionStorageHolder() {}
-  virtual ~SessionStorageHolder() {}
+  ~SessionStorageHolder() override {}
 
   void Hold(const SessionStorageNamespaceMap& sessions, int view_route_id) {
     session_storage_namespaces_awaiting_close_[view_route_id] = sessions;
   }
 
   void Release(int old_route_id) {
     session_storage_namespaces_awaiting_close_.erase(old_route_id);
   }
 
  private:
@@ skipping 1877 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content