Update from chromium 62675d9fb31fb8cedc40f68e78e8445a74f362e7

ui/gl/gl_fence_egl.cc

 // Copyright 2014 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_fence_egl.h"
 
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 
 namespace gfx {
@@ skipping 24 matching lines @@
   if (!flush_event_.get() || flush_event_->IsSignaled()) {
     EGLint flags = 0;
     EGLTimeKHR time = EGL_FOREVER_KHR;
     eglClientWaitSyncKHR(display_, sync_, flags, time);
   } else {
     LOG(ERROR) << "Trying to wait for uncommitted fence. Skipping...";
   }
 }
 
 void GLFenceEGL::ServerWait() {
+  if (!gfx::g_driver_egl.ext.b_EGL_KHR_wait_sync) {
+    ClientWait();
+    return;
+  }
   if (!flush_event_.get() || flush_event_->IsSignaled()) {
     EGLint flags = 0;
     eglWaitSyncKHR(display_, sync_, flags);
   } else {
     LOG(ERROR) << "Trying to wait for uncommitted fence. Skipping...";
   }
 }
 
 GLFenceEGL::~GLFenceEGL() {
   eglDestroySyncKHR(display_, sync_);
 }
 
 }  // namespace gfx