Added support for TimeStamp queries using QueryCounterEXT.

mojo/gpu/mojo_gles2_impl_autogen.cc

Index: mojo/gpu/mojo_gles2_impl_autogen.cc
diff --git a/mojo/gpu/mojo_gles2_impl_autogen.cc b/mojo/gpu/mojo_gles2_impl_autogen.cc
index f677723d28dfe410015790ca6a124a72b629f5d8..7c875c8686163c1a2133daac9accf96a22136959 100644
--- a/mojo/gpu/mojo_gles2_impl_autogen.cc
+++ b/mojo/gpu/mojo_gles2_impl_autogen.cc
@@ -1255,6 +1255,9 @@ void MojoGLES2Impl::DeleteQueriesEXT(GLsizei n, const GLuint* queries) {
   MojoGLES2MakeCurrent(context_);
   glDeleteQueriesEXT(n, queries);
 }
+void MojoGLES2Impl::QueryCounterEXT(GLuint id, GLenum target) {
+  NOTREACHED() << "Unimplemented QueryCounterEXT.";
+}
 GLboolean MojoGLES2Impl::IsQueryEXT(GLuint id) {
   MojoGLES2MakeCurrent(context_);
   return glIsQueryEXT(id);