Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/common/gles2_cmd_format_test.cc

Index: gpu/command_buffer/common/gles2_cmd_format_test.cc
diff --git a/gpu/command_buffer/common/gles2_cmd_format_test.cc b/gpu/command_buffer/common/gles2_cmd_format_test.cc
index 717e6fb20305124359d8e12281d2b0d6f8f97a44..ea683a668eb5fa94f07423a712c71cc37724e424 100644
--- a/gpu/command_buffer/common/gles2_cmd_format_test.cc
+++ b/gpu/command_buffer/common/gles2_cmd_format_test.cc
@@ -19,12 +19,9 @@ class GLES2FormatTest : public testing::Test {
  protected:
   static const unsigned char kInitialValue = 0xBD;
 
-  virtual void SetUp() {
-    memset(buffer_, kInitialValue, sizeof(buffer_));
-  }
+  void SetUp() override { memset(buffer_, kInitialValue, sizeof(buffer_)); }
 
-  virtual void TearDown() {
-  }
+  void TearDown() override {}
 
   template <typename T>
   T* GetBufferAs() {