Complete disable_gl_rgb_format workaround for Mali-400 GPU

gpu/command_buffer/service/framebuffer_manager.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.
 
 #include "gpu/command_buffer/service/framebuffer_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
@@ skipping 454 matching lines @@
 bool Framebuffer::HasDepthAttachment() const {
   return attachments_.find(GL_DEPTH_STENCIL_ATTACHMENT) != attachments_.end() ||
          attachments_.find(GL_DEPTH_ATTACHMENT) != attachments_.end();
 }
 
 bool Framebuffer::HasStencilAttachment() const {
   return attachments_.find(GL_DEPTH_STENCIL_ATTACHMENT) != attachments_.end() ||
          attachments_.find(GL_STENCIL_ATTACHMENT) != attachments_.end();
 }
 
+GLenum Framebuffer::GetColorAttachment0Format() const {
+  AttachmentMap::const_iterator it = attachments_.find(GL_COLOR_ATTACHMENT0);
+  if (it == attachments_.end()) {
+    return 0;
+  }
+  const Attachment* attachment = it->second.get();
+  return attachment->internal_format();
+}
+
 GLenum Framebuffer::GetReadBufferInternalFormat() const {
   if (read_buffer_ == GL_NONE)
     return 0;
   AttachmentMap::const_iterator it = attachments_.find(read_buffer_);
   if (it == attachments_.end()) {
     return 0;
   }
   const Attachment* attachment = it->second.get();
   return attachment->internal_format();
 }
@@ skipping 299 matching lines @@
 
 bool FramebufferManager::IsComplete(
     Framebuffer* framebuffer) {
   DCHECK(framebuffer);
   return framebuffer->framebuffer_complete_state_count_id() ==
       framebuffer_state_change_count_;
 }
 
 }  // namespace gles2
 }  // namespace gpu