Support swap damage rect using eglSwapBuffersWithDamageKHR

gpu/command_buffer/common/capabilities.h

 // Copyright 2013 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.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_CAPABILITIES_H_
 #define GPU_COMMAND_BUFFER_COMMON_CAPABILITIES_H_
 
 #include <stdint.h>
 
 #include "gpu/gpu_export.h"
@@ skipping 140 matching lines @@
   // actually have RGBA format. The client is responsible for handling most of
   // the complexities associated with this. See
   // gpu/GLES2/extensions/CHROMIUM/CHROMIUM_gpu_memory_buffer_image.txt for more
   // details.
   bool chromium_image_rgb_emulation;
 
   // When true, RGB framebuffer formats are unsupported. Emulate with RGBA to
   // work around this. See https://crbug.com/449150 for an example.
   bool emulate_rgb_buffer_with_rgba;
 
+  bool swap_buffers_with_damage;

[piman, 2016/09/08 04:27:11]

nit: maybe move this around l.118 together with post_sub_buffer?

[halliwell, 2016/09/08 13:19:00]

Done.

+
   int major_version;
   int minor_version;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_CAPABILITIES_H_