Blacklist partial swaps on linux

content/common/gpu/texture_image_transport_surface.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 "content/common/gpu/texture_image_transport_surface.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 250 matching lines @@
   glFlush();
 
   params.latency_info.swap(latency_info_);
   helper_->SendAcceleratedSurfacePostSubBuffer(params);
 
   DCHECK(!is_swap_buffers_pending_);
   is_swap_buffers_pending_ = true;
   return true;
 }
 
-std::string TextureImageTransportSurface::GetExtensions() {
-  std::string extensions = gfx::GLSurface::GetExtensions();
-  extensions += extensions.empty() ? "" : " ";
-  extensions += "GL_CHROMIUM_post_sub_buffer";
-  return extensions;
+bool TextureImageTransportSurface::SupportsPostSubBuffer() {
+  return true;
 }
 
 gfx::Size TextureImageTransportSurface::GetSize() {
   return current_size_;
 }
 
 void* TextureImageTransportSurface::GetHandle() {
   return surface_.get() ? surface_->GetHandle() : NULL;
 }
 
@@ skipping 165 matching lines @@
 
 #ifndef NDEBUG
   GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER);
   if (status != GL_FRAMEBUFFER_COMPLETE) {
     DLOG(FATAL) << "Framebuffer incomplete: " << status;
   }
 #endif
 }
 
 }  // namespace content