Standardize usage of virtual/override/final specifiers.

gpu/command_buffer/tests/gl_pointcoord_unittest.cc

Index: gpu/command_buffer/tests/gl_pointcoord_unittest.cc
diff --git a/gpu/command_buffer/tests/gl_pointcoord_unittest.cc b/gpu/command_buffer/tests/gl_pointcoord_unittest.cc
index fe71eed3e00c7124479901ee9b779f94b5ea4990..d9501b0b52084536b30c5aed52a38876184e01a8 100644
--- a/gpu/command_buffer/tests/gl_pointcoord_unittest.cc
+++ b/gpu/command_buffer/tests/gl_pointcoord_unittest.cc
@@ -19,15 +19,13 @@ class PointCoordTest : public testing::Test {
   static const GLsizei kResolution = 256;
 
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     GLManager::Options options;
     options.size = gfx::Size(kResolution, kResolution);
     gl_.Initialize(options);
   }
 
-  virtual void TearDown() {
-    gl_.Destroy();
-  }
+  void TearDown() override { gl_.Destroy(); }
 
   GLuint SetupQuad(GLint position_location, GLfloat pixel_offset);