Standardize usage of virtual/override/final specifiers.

extensions/browser/api/power/power_api_unittest.cc

 // 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.
 
 #include "extensions/browser/api/power/power_api.h"
 
 #include <deque>
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 110 matching lines @@
 
   base::WeakPtrFactory<PowerSaveBlockerStubManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerSaveBlockerStubManager);
 };
 
 }  // namespace
 
 class PowerApiTest : public ApiUnitTest {
  public:
-  virtual void SetUp() override {
+  void SetUp() override {
     ApiUnitTest::SetUp();
     manager_.reset(new PowerSaveBlockerStubManager(browser_context()));
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     manager_.reset();
     ApiUnitTest::TearDown();
   }
 
  protected:
   // Shorthand for PowerRequestKeepAwakeFunction and
   // PowerReleaseKeepAwakeFunction.
   enum FunctionType {
     REQUEST,
     RELEASE,
@@ skipping 121 matching lines @@
   EXPECT_EQ(NONE, manager_->PopFirstRequest());
 
   // Make the first extension block display-sleep again.
   ASSERT_TRUE(CallFunction(REQUEST, kDisplayArgs, extension()));
   EXPECT_EQ(BLOCK_DISPLAY_SLEEP, manager_->PopFirstRequest());
   EXPECT_EQ(UNBLOCK_APP_SUSPENSION, manager_->PopFirstRequest());
   EXPECT_EQ(NONE, manager_->PopFirstRequest());
 }
 
 }  // namespace extensions