Standardize usage of virtual/override/final specifiers.

content/browser/compositor/buffer_queue_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 <set>
 
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "content/browser/compositor/buffer_queue.h"
 #include "content/browser/compositor/gpu_surfaceless_browser_compositor_output_surface.h"
@@ skipping 14 matching lines @@
                   unsigned int internalformat)
       : BufferQueue(context_provider, internalformat, nullptr) {}
   MOCK_METHOD4(CopyBufferDamage,
                void(int, int, const gfx::Rect&, const gfx::Rect&));
 };
 
 class BufferQueueTest : public ::testing::Test {
  public:
   BufferQueueTest() : doublebuffering_(true), first_frame_(true) {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     scoped_refptr<cc::TestContextProvider> context_provider =
         cc::TestContextProvider::Create(cc::TestWebGraphicsContext3D::Create());
     context_provider->BindToCurrentThread();
     output_surface_.reset(new MockBufferQueue(context_provider, GL_RGBA));
     output_surface_->Initialize();
   }
 
   unsigned current_surface() { return output_surface_->current_surface_.image; }
   const std::vector<BufferQueue::AllocatedSurface>& available_surfaces() {
     return output_surface_->available_surfaces_;
@@ skipping 233 matching lines @@
   output_surface_->PageFlipComplete();
   EXPECT_EQ(3, CountBuffers());
   CheckUnique();
   EXPECT_NE(0U, current_surface());
   EXPECT_EQ(1U, in_flight_surfaces().size());
   EXPECT_EQ(1U, available_surfaces().size());
 }
 
 }  // namespace
 }  // namespace content