gpu: support RG_88 GpuMemoryBuffer

ui/gl/test/gl_image_test_support.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gl/test/gl_image_test_support.h"
 
 #include <vector>
 
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/init/gl_factory.h"
@@ skipping 28 matching lines @@
 // static
 void GLImageTestSupport::SetBufferDataToColor(int width,
                                               int height,
                                               int stride,
                                               int plane,
                                               gfx::BufferFormat format,
                                               const uint8_t color[4],
                                               uint8_t* data) {
   switch (format) {
     case gfx::BufferFormat::R_8:
+    case gfx::BufferFormat::RG_88:
       DCHECK_EQ(0, plane);
       for (int y = 0; y < height; ++y) {
         memset(&data[y * stride], color[0], width);
       }
       return;
     case gfx::BufferFormat::BGR_565:
       DCHECK_EQ(0, plane);
       for (int y = 0; y < height; ++y) {
         for (int x = 0; x < width; ++x) {
           *reinterpret_cast<uint16_t*>(&data[y * stride + x * 2]) =
@@ skipping 106 matching lines @@
     case gfx::BufferFormat::ETC1:
     case gfx::BufferFormat::RGBA_4444:
     case gfx::BufferFormat::UYVY_422:
       NOTREACHED();
       return;
   }
   NOTREACHED();
 }
 
 }  // namespace gl