cc: GPU rasterize to an auxiliary surface when using MSAA renderbuffers

gpu/command_buffer/common/capabilities.h

Index: gpu/command_buffer/common/capabilities.h
diff --git a/gpu/command_buffer/common/capabilities.h b/gpu/command_buffer/common/capabilities.h
index 4443e61c7f6e0320dce06ce06930e1849063b3ac..ddf1e9dcec53eb89315f123f1ade2cfa8d7dff37 100644
--- a/gpu/command_buffer/common/capabilities.h
+++ b/gpu/command_buffer/common/capabilities.h
@@ -146,7 +146,6 @@ struct GPU_EXPORT Capabilities {
   bool msaa_is_slow;
   bool disable_webgl_multisampling_color_mask_usage;
   bool disable_webgl_rgb_multisampling_usage;
-
   // When this parameter is true, a CHROMIUM image created with RGB format will
   // actually have RGBA format. The client is responsible for handling most of
   // the complexities associated with this. See
@@ -158,6 +157,9 @@ struct GPU_EXPORT Capabilities {
   // work around this. See https://crbug.com/449150 for an example.
   bool emulate_rgb_buffer_with_rgba;
 
+  bool multisampled_render_to_texture;
+  bool chromium_framebuffer_mixed_samples;
+
   int major_version;
   int minor_version;
 };