Standardize usage of virtual/override/final specifiers in content/.

content/browser/power_usage_monitor_impl_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 "content/browser/power_usage_monitor_impl.h"
 
 #include "content/public/browser/notification_types.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "device/battery/battery_monitor.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 42 matching lines @@
   base::Time Now() override { return now_; }
 
  private:
   int num_pending_histogram_reports_;
   int discharge_percent_per_hour_;
   base::Time now_;
 };
 
 class PowerUsageMonitorTest : public testing::Test {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     monitor_.reset(new PowerUsageMonitor);
     // PowerUsageMonitor assumes ownership.
     scoped_ptr<SystemInterfaceForTest> test_interface(
         new SystemInterfaceForTest());
     system_interface_ = test_interface.get();
     monitor_->SetSystemInterfaceForTest(test_interface.Pass());
 
     // Without live renderers, the monitor won't do anything.
     monitor_->OnRenderProcessNotification(NOTIFICATION_RENDERER_PROCESS_CREATED,
                                           kDummyRenderProcessHostID);
@@ skipping 84 matching lines @@
   ASSERT_EQ(0, system_interface_->num_pending_histogram_reports());
 
   // Wall power connected.
   system_interface_->AdvanceClockMinutes(31);
   UpdateBatteryStatus(true, 0);
   ASSERT_EQ(0, system_interface_->num_pending_histogram_reports());
   ASSERT_EQ(0, system_interface_->discharge_percent_per_hour());
 }
 
 }  // namespace content