WebGL: GL_RGB emulation for IOSurface backed textures. [For reference only]

ui/gl/gl_image_glx.cc

 // Copyright (c) 2012 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.
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 189 matching lines @@
                                       const gfx::RectF& crop_rect) {
   return false;
 }
 
 void GLImageGLX::OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                               uint64_t process_tracing_id,
                               const std::string& dump_name) {
   // TODO(ericrk): Implement GLImage OnMemoryDump. crbug.com/514914
 }
 
+bool GLImageGLX::EmulatingRGB() const {
+  return false;
+}
+
 }  // namespace gl