Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/tests/gl_program_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"
 
 #define SHADER(Src) #Src
 
 namespace gpu {
 
 class GLProgramTest : public testing::Test {
  protected:
-  virtual void SetUp() {
-    gl_.Initialize(GLManager::Options());
-  }
+  void SetUp() override { gl_.Initialize(GLManager::Options()); }
 
-  virtual void TearDown() {
-    gl_.Destroy();
-  }
+  void TearDown() override { gl_.Destroy(); }
 
   GLManager gl_;
 };
 
 TEST_F(GLProgramTest, GetSetUniform) {
   static const char* v_shader_str = SHADER(
       attribute vec4 a_vertex;
       attribute vec3 a_normal;
 
       uniform mat4 u_modelViewProjMatrix;
@@ skipping 121 matching lines @@
   GLuint position_loc = glGetAttribLocation(program, "a_position");
   GLTestHelper::SetupUnitQuad(position_loc);
   glDrawArrays(GL_TRIANGLES, 0, 6);
   uint8 expected_color[] = { 0, 0, 255, 255, };
   EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_color));
   GLTestHelper::CheckGLError("no errors", __LINE__);
 }
 
 }  // namespace gpu