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

chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc

Index: chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc
diff --git a/chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc b/chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc
index def38dd921a5d753609ce7e06b11392a0c102755..020c6552e2ef753a58e77bb387a18f062ec0eca9 100644
--- a/chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc
+++ b/chrome/browser/extensions/api/hotword_private/hotword_private_apitest.cc
@@ -24,11 +24,9 @@ class MockHotwordService : public HotwordService {
  public:
   explicit MockHotwordService(Profile* profile)
       : HotwordService(profile), service_available_(true) {};
-  virtual ~MockHotwordService() {}
+  ~MockHotwordService() override {}
 
-  virtual bool IsServiceAvailable() override {
-    return service_available_;
-  }
+  bool IsServiceAvailable() override { return service_available_; }
 
   void setServiceAvailable(bool available) {
     service_available_ = available;
@@ -38,7 +36,7 @@ class MockHotwordService : public HotwordService {
     return new MockHotwordService(static_cast<Profile*>(profile));
   }
 
-  virtual LaunchMode GetHotwordAudioVerificationLaunchMode() override {
+  LaunchMode GetHotwordAudioVerificationLaunchMode() override {
     return launch_mode_;
   }
 
@@ -61,16 +59,14 @@ class MockHotwordClient : public HotwordClient {
         recognized_count_(0) {
   }
 
-  virtual ~MockHotwordClient() {}
+  ~MockHotwordClient() override {}
 
-  virtual void OnHotwordStateChanged(bool enabled) override {
+  void OnHotwordStateChanged(bool enabled) override {
     last_enabled_ = enabled;
     state_changed_count_++;
   }
 
-  virtual void OnHotwordRecognized() override {
-    recognized_count_++;
-  }
+  void OnHotwordRecognized() override { recognized_count_++; }
 
   bool last_enabled() const { return last_enabled_; }
   int state_changed_count() const { return state_changed_count_; }
@@ -89,7 +85,7 @@ class HotwordPrivateApiTest : public ExtensionApiTest {
   HotwordPrivateApiTest() {}
   virtual ~HotwordPrivateApiTest() {}
 
-  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
 
     // Whitelist the test extensions (which all share a common ID) to use
@@ -98,7 +94,7 @@ class HotwordPrivateApiTest : public ExtensionApiTest {
         extensions::switches::kWhitelistedExtensionID, kHotwordTestExtensionId);
   }
 
-  virtual void SetUpOnMainThread() override {
+  void SetUpOnMainThread() override {
     ExtensionApiTest::SetUpOnMainThread();
 
     test_data_dir_ = test_data_dir_.AppendASCII("hotword_private");