gpu: Autogenerate glHint state

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
index f021ef312ac1afdbe659ab5d33d0ab5d56b51c77..56cf3e27a0baa69876efb482f6c62f0c107dbf19 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
@@ -1407,7 +1407,22 @@ error::Error GLES2DecoderImpl::HandleHint(
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glHint", mode, "mode");
     return error::kNoError;
   }
-  DoHint(target, mode);
+  switch (target) {
+    case GL_GENERATE_MIPMAP_HINT:
+      if (state_.hint_generate_mipmap != mode) {
+        state_.hint_generate_mipmap = mode;
+        glHint(target, mode);
+      }
+      break;
+    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
+      if (state_.hint_fragment_shader_derivative != mode) {
+        state_.hint_fragment_shader_derivative = mode;
+        glHint(target, mode);
+      }
+      break;
+    default:
+      NOTREACHED();
+  }
   return error::kNoError;
 }