Standardize usage of virtual/override/final in gpu/

gpu/command_buffer/service/texture_manager_unittest.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 "gpu/command_buffer/service/texture_manager.h"
 
 #include <utility>
 
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/service/error_state_mock.h"
@@ skipping 2149 matching lines @@
       GetLevelInfo(restored_texture.get(), GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0));
 }
 
 class CountingMemoryTracker : public MemoryTracker {
  public:
   CountingMemoryTracker() {
     current_size_[0] = 0;
     current_size_[1] = 0;
   }
 
-  virtual void TrackMemoryAllocatedChange(size_t old_size,
-                                          size_t new_size,
-                                          Pool pool)  override {
+  void TrackMemoryAllocatedChange(size_t old_size,
+                                  size_t new_size,
+                                  Pool pool) override {
     DCHECK_LT(static_cast<size_t>(pool), arraysize(current_size_));
     current_size_[pool] += new_size - old_size;
   }
 
-  virtual bool EnsureGPUMemoryAvailable(size_t size_needed) override {
-    return true;
-  }
+  bool EnsureGPUMemoryAvailable(size_t size_needed) override { return true; }
 
   size_t GetSize(Pool pool) {
     DCHECK_LT(static_cast<size_t>(pool), arraysize(current_size_));
     return current_size_[pool];
   }
 
  private:
-  virtual ~CountingMemoryTracker() {}
+  ~CountingMemoryTracker() override {}
 
   size_t current_size_[2];
   DISALLOW_COPY_AND_ASSIGN(CountingMemoryTracker);
 };
 
 class SharedTextureTest : public GpuServiceTest {
  public:
   static const bool kUseDefaultTextures = false;
 
   SharedTextureTest() : feature_info_(new FeatureInfo()) {}
@@ skipping 302 matching lines @@
 
   EXPECT_CALL(*gl_, DeleteTextures(1, _))
       .Times(1)
       .RetiresOnSaturation();
   texture_manager1_->RemoveTexture(10);
   texture_manager2_->RemoveTexture(20);
 }
 
 }  // namespace gles2
 }  // namespace gpu