Add GL_PROGRAM_COMPLETION_QUERY_CHROMIUM

This makes the query of GL_COMPLETION_STATUS_KHR to programs much
cheaper by minimizing the round-trip to the GPU thread.

Bug: 881152, 957001
Change-Id: Iadfa798af29225e752c710ca5c25f50b3dd3101a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1586630
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657568}
void GLES2Decoder::SetLevelInfo(uint32_t client_id,
                                int level,
                                unsigned internal_format,
                                unsigned width,
                                unsigned height,
                                unsigned depth,
                                unsigned format,
                                unsigned type,
                                const gfx::Rect& cleared_rect) {}

void GLES2Decoder::SetLevelInfo(uint32_t client_id,
                                int level,
                                unsigned internal_format,
                                unsigned width,
                                unsigned height,
                                unsigned depth,
                                unsigned format,
                                unsigned type,
                                const gfx::Rect& cleared_rect) {}
