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

chrome/browser/renderer_host/render_process_host_chrome_browsertest.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.
 
 #include "base/command_line.h"
 #include "base/process/process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 201 matching lines @@
     EXPECT_EQ(host_count, RenderProcessHostCount());
     EXPECT_NE(rph1, rph3);
     EXPECT_NE(rph2, rph3);
   }
 };
 
 
 class ChromeRenderProcessHostTestWithCommandLine
     : public ChromeRenderProcessHostTest {
  protected:
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     command_line->AppendSwitchASCII(switches::kRendererProcessLimit, "1");
   }
 };
 
 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, ProcessPerTab) {
   // Set max renderers to 1 to force running out of processes.
   content::RenderProcessHost::SetMaxRendererProcessCount(1);
 
   CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
   parsed_command_line.AppendSwitch(switches::kProcessPerTab);
@@ skipping 222 matching lines @@
 // This class's goal is to close the browser window when a renderer process has
 // crashed. It does so by monitoring WebContents for RenderProcessGone event and
 // closing the passed in TabStripModel. This is used in the following test case.
 class WindowDestroyer : public content::WebContentsObserver {
  public:
   WindowDestroyer(content::WebContents* web_contents, TabStripModel* model)
       : content::WebContentsObserver(web_contents),
         tab_strip_model_(model) {
   }
 
-  virtual void RenderProcessGone(base::TerminationStatus status) override {
+  void RenderProcessGone(base::TerminationStatus status) override {
     // Wait for the window to be destroyed, which will ensure all other
     // RenderViewHost objects are deleted before we return and proceed with
     // the next iteration of notifications.
     content::WindowedNotificationObserver observer(
         chrome::NOTIFICATION_BROWSER_CLOSED,
         content::NotificationService::AllSources());
     tab_strip_model_->CloseAllTabs();
     observer.Wait();
   }
 
@@ skipping 31 matching lines @@
       chrome::NOTIFICATION_BROWSER_CLOSED,
       content::NotificationService::AllSources());
 
   // Kill the renderer process, simulating a crash. This should the ProcessDied
   // method to be called. Alternatively, RenderProcessHost::OnChannelError can
   // be called to directly force a call to ProcessDied.
   base::KillProcess(wc1->GetRenderProcessHost()->GetHandle(), -1, true);
 
   observer.Wait();
 }