Implemented new fence syncs which replaces the old sync points.

gpu/gles2_conform_support/egl/display.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/gles2_conform_support/egl/display.h"
 
 #include <vector>
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 17 matching lines @@
 namespace egl {
 
 Display::Display(EGLNativeDisplayType display_id)
     : display_id_(display_id),
       is_initialized_(false),
 #if defined(COMMAND_BUFFER_GLES_LIB_SUPPORT_ONLY)
       exit_manager_(new base::AtExitManager),
 #endif
       create_offscreen_(false),
       create_offscreen_width_(0),
-      create_offscreen_height_(0) {
+      create_offscreen_height_(0),
+      next_fence_sync_release_(1) {
 }
 
 Display::~Display() {
   gles2::Terminate();
 }
 
 bool Display::Initialize() {
   gles2::Initialize();
   is_initialized_ = true;
   return true;
@@ skipping 296 matching lines @@
 }
 
 gpu::CommandBufferNamespace Display::GetNamespaceID() const {
   return gpu::CommandBufferNamespace::IN_PROCESS;
 }
 
 uint64_t Display::GetCommandBufferID() const {
   return 0;
 }
 
+uint32_t Display::GenerateFenceSyncRelease() {
+  return next_fence_sync_release_++;
+}
+
+bool Display::IsFenceSyncRelease(uint32_t release) {
+  return release > 0 && release < next_fence_sync_release_;
+}
+
+bool Display::IsFenceSyncFlushed(uint32_t release) {
+  return IsFenceSyncRelease(release);
+}
+
 }  // namespace egl