Implemented new fence syncs which replaces the old sync points.

mojo/gpu/mojo_gles2_impl_autogen.h

 // 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 747 matching lines @@
   void ReleaseTexImage2DCHROMIUM(GLenum target, GLint imageId) override;
   void TraceBeginCHROMIUM(const char* category_name,
                           const char* trace_name) override;
   void TraceEndCHROMIUM() override;
   void DiscardFramebufferEXT(GLenum target,
                              GLsizei count,
                              const GLenum* attachments) override;
   void LoseContextCHROMIUM(GLenum current, GLenum other) override;
   GLuint InsertSyncPointCHROMIUM() override;
   void WaitSyncPointCHROMIUM(GLuint sync_point) override;
+  GLuint InsertFenceSyncCHROMIUM() override;
+  void GenSyncTokenCHROMIUM(GLuint fence_sync, GLbyte* sync_token) override;
+  void WaitSyncTokenCHROMIUM(const GLbyte* sync_token) override;
   void DrawBuffersEXT(GLsizei count, const GLenum* bufs) override;
   void DiscardBackbufferCHROMIUM() override;
   void ScheduleOverlayPlaneCHROMIUM(GLint plane_z_order,
                                     GLenum plane_transform,
                                     GLuint overlay_texture_id,
                                     GLint bounds_x,
                                     GLint bounds_y,
                                     GLint bounds_width,
                                     GLint bounds_height,
                                     GLfloat uv_x,
@@ skipping 37 matching lines @@
   GLenum GetGraphicsResetStatusKHR() override;
   void BlendBarrierKHR() override;
   void ApplyScreenSpaceAntialiasingCHROMIUM() override;
 
  private:
   MojoGLES2Context context_;
 };
 
 }  // namespace mojo
 #endif  // MOJO_GPU_MOJO_GLES2_IMPL_AUTOGEN_H_