Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/service/shader_translator_unittest.cc

Index: gpu/command_buffer/service/shader_translator_unittest.cc
diff --git a/gpu/command_buffer/service/shader_translator_unittest.cc b/gpu/command_buffer/service/shader_translator_unittest.cc
index 40d5be7c1865e17bc6d3549a76b0e3402e2bc5e9..16c80a20daba94d33996e5193f58acd04c67dad1 100644
--- a/gpu/command_buffer/service/shader_translator_unittest.cc
+++ b/gpu/command_buffer/service/shader_translator_unittest.cc
@@ -15,11 +15,10 @@ class ShaderTranslatorTest : public testing::Test {
   ShaderTranslatorTest() {
   }
 
-  virtual ~ShaderTranslatorTest() {
-  }
+  ~ShaderTranslatorTest() override {}
 
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     ShBuiltInResources resources;
     ShInitBuiltInResources(&resources);
     resources.MaxExpressionComplexity = 32;
@@ -37,7 +36,7 @@ class ShaderTranslatorTest : public testing::Test {
         ShaderTranslatorInterface::kGlsl,
         static_cast<ShCompileOptions>(0)));
   }
-  virtual void TearDown() {
+  void TearDown() override {
     vertex_translator_ = NULL;
     fragment_translator_ = NULL;
   }