Implemented new fence syncs which replaces the old sync points.

gpu/command_buffer/tests/gl_manager.cc

Index: gpu/command_buffer/tests/gl_manager.cc
diff --git a/gpu/command_buffer/tests/gl_manager.cc b/gpu/command_buffer/tests/gl_manager.cc
index 9c6bf41e5d6de3cf25871e1aa2ffad8eeca1b3cb..f500eb2f1d5d5c780a53107d0fd675831b841238 100644
--- a/gpu/command_buffer/tests/gl_manager.cc
+++ b/gpu/command_buffer/tests/gl_manager.cc
@@ -111,7 +111,9 @@ GLManager::Options::Options()
       context_lost_allowed(false),
       context_type(gles2::CONTEXT_TYPE_OPENGLES2) {}
 
-GLManager::GLManager() : context_lost_allowed_(false) {
+GLManager::GLManager()
+    : context_lost_allowed_(false),
+      next_fence_sync_release_(1) {
   SetupBaseContext();
 }
 
@@ -444,4 +446,16 @@ uint64_t GLManager::GetCommandBufferID() const {
   return 0;
 }
 
+uint64_t GLManager::GenerateFenceSyncRelease() {
+  return next_fence_sync_release_++;
+}
+
+bool GLManager::IsFenceSyncRelease(uint64_t release) {
+  return release > 0 && release < next_fence_sync_release_;
+}
+
+bool GLManager::IsFenceSyncFlushed(uint64_t release) {
+  return IsFenceSyncRelease(release);
+}
+
 }  // namespace gpu