Blacklist partial swaps on linux

ui/gl/gl_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 "ui/gl/gl_surface.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 159 matching lines @@
 
 bool GLSurface::Recreate() {
   NOTIMPLEMENTED();
   return false;
 }
 
 bool GLSurface::DeferDraws() {
   return false;
 }
 
-std::string GLSurface::GetExtensions() {
-  return std::string();
-}
-
-bool GLSurface::HasExtension(const char* name) {
-  std::string extensions = GetExtensions();
-  extensions += " ";
-
-  std::string delimited_name(name);
-  delimited_name += " ";
-
-  return extensions.find(delimited_name) != std::string::npos;
+bool GLSurface::SupportsPostSubBuffer() {
+  return false;
 }
 
 unsigned int GLSurface::GetBackingFrameBufferObject() {
   return 0;
 }
 
 bool GLSurface::PostSubBuffer(int x, int y, int width, int height) {
   return false;
 }
 
@@ skipping 85 matching lines @@
 }
 
 bool GLSurfaceAdapter::SwapBuffers() {
   return surface_->SwapBuffers();
 }
 
 bool GLSurfaceAdapter::PostSubBuffer(int x, int y, int width, int height) {
   return surface_->PostSubBuffer(x, y, width, height);
 }
 
-std::string GLSurfaceAdapter::GetExtensions() {
-  return surface_->GetExtensions();
+bool GLSurfaceAdapter::SupportsPostSubBuffer() {
+  return surface_->SupportsPostSubBuffer();
 }
 
 gfx::Size GLSurfaceAdapter::GetSize() {
   return surface_->GetSize();
 }
 
 void* GLSurfaceAdapter::GetHandle() {
   return surface_->GetHandle();
 }
 
@@ skipping 29 matching lines @@
   return surface_->GetFormat();
 }
 
 VSyncProvider* GLSurfaceAdapter::GetVSyncProvider() {
   return surface_->GetVSyncProvider();
 }
 
 GLSurfaceAdapter::~GLSurfaceAdapter() {}
 
 }  // namespace gfx