Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/tests/gl_texture_storage_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 <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 
 #include "gpu/command_buffer/tests/gl_manager.h"
 #include "gpu/command_buffer/tests/gl_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gpu {
 
 class TextureStorageTest : public testing::Test {
  protected:
   static const GLsizei kResolution = 64;
-  virtual void SetUp() {
+  void SetUp() override {
     GLManager::Options options;
     options.size = gfx::Size(kResolution, kResolution);
     gl_.Initialize(options);
     gl_.MakeCurrent();
 
     glGenTextures(1, &tex_);
     glBindTexture(GL_TEXTURE_2D, tex_);
 
     glGenFramebuffers(1, &fbo_);
     glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
     glFramebufferTexture2D(GL_FRAMEBUFFER,
                            GL_COLOR_ATTACHMENT0,
                            GL_TEXTURE_2D,
                            tex_,
                            0);
 
     const GLubyte* extensions = glGetString(GL_EXTENSIONS);
     extension_available_ = strstr(reinterpret_cast<const char*>(
         extensions), "GL_EXT_texture_storage");
   }
 
-  virtual void TearDown() {
-    gl_.Destroy();
-  }
+  void TearDown() override { gl_.Destroy(); }
 
   GLManager gl_;
   GLuint tex_;
   GLuint fbo_;
   bool extension_available_;
 };
 
 TEST_F(TextureStorageTest, CorrectPixels) {
   if (!extension_available_)
     return;
@@ skipping 98 matching lines @@
                GL_RGBA,
                GL_UNSIGNED_BYTE,
                NULL);
   EXPECT_EQ(static_cast<GLenum>(GL_INVALID_OPERATION), glGetError());
 }
 
 }  // namespace gpu