Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/service/shader_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/shader_manager.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/service/gpu_service_test.h"
 #include "gpu/command_buffer/service/mocks.h"
 #include "gpu/command_buffer/service/test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_mock.h"
 
 using ::testing::Return;
 using ::testing::ReturnRef;
 
 namespace gpu {
 namespace gles2 {
 
 class ShaderManagerTest : public GpuServiceTest {
  public:
   ShaderManagerTest() {
   }
 
-  virtual ~ShaderManagerTest() {
-    manager_.Destroy(false);
-  }
+  ~ShaderManagerTest() override { manager_.Destroy(false); }
 
  protected:
   ShaderManager manager_;
 };
 
 TEST_F(ShaderManagerTest, Basic) {
   const GLuint kClient1Id = 1;
   const GLuint kService1Id = 11;
   const GLenum kShader1Type = GL_VERTEX_SHADER;
   const GLuint kClient2Id = 2;
@@ skipping 222 matching lines @@
   EXPECT_FALSE(shader1->InUse());
   shader2 = manager_.GetShader(kClient1Id);
   EXPECT_EQ(shader1, shader2);
   manager_.MarkAsDeleted(shader1);  // this should delete the shader.
   shader2 = manager_.GetShader(kClient1Id);
   EXPECT_TRUE(shader2 == NULL);
 }
 
 }  // namespace gles2
 }  // namespace gpu