Update {virtual,override} to follow C++11 style in base.

base/test/test_suite.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/test/test_suite.h"
 
 #include "base/at_exit.h"
 #include "base/base_paths.h"
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ skipping 37 matching lines @@
 #endif
 
 #if defined(OS_IOS)
 #include "base/test/test_support_ios.h"
 #endif
 
 namespace {
 
 class MaybeTestDisabler : public testing::EmptyTestEventListener {
  public:
-  virtual void OnTestStart(const testing::TestInfo& test_info) override {
+  void OnTestStart(const testing::TestInfo& test_info) override {
     ASSERT_FALSE(TestSuite::IsMarkedMaybe(test_info))
         << "Probably the OS #ifdefs don't include all of the necessary "
            "platforms.\nPlease ensure that no tests have the MAYBE_ prefix "
            "after the code is preprocessed.";
   }
 };
 
 class TestClientInitializer : public testing::EmptyTestEventListener {
  public:
   TestClientInitializer()
       : old_command_line_(base::CommandLine::NO_PROGRAM) {
   }
 
-  virtual void OnTestStart(const testing::TestInfo& test_info) override {
+  void OnTestStart(const testing::TestInfo& test_info) override {
     old_command_line_ = *base::CommandLine::ForCurrentProcess();
   }
 
-  virtual void OnTestEnd(const testing::TestInfo& test_info) override {
+  void OnTestEnd(const testing::TestInfo& test_info) override {
     *base::CommandLine::ForCurrentProcess() = old_command_line_;
   }
 
  private:
   base::CommandLine old_command_line_;
 
   DISALLOW_COPY_AND_ASSIGN(TestClientInitializer);
 };
 
 }  // namespace
@@ skipping 263 matching lines @@
   ResetCommandLine();
   AddTestLauncherResultPrinter();
 
   TestTimeouts::Initialize();
 
   trace_to_file_.BeginTracingFromCommandLineOptions();
 }
 
 void TestSuite::Shutdown() {
 }