Implemented new fence syncs which replaces the old sync points.

mojo/gpu/mojo_gles2_impl_autogen.h

Index: mojo/gpu/mojo_gles2_impl_autogen.h
diff --git a/mojo/gpu/mojo_gles2_impl_autogen.h b/mojo/gpu/mojo_gles2_impl_autogen.h
index 0d1047b5a5ebef3a7b82ffd7fba0be72926957b3..2a8f9e1eeb25a78ff1fb133eea4c8c4b1268d9d6 100644
--- a/mojo/gpu/mojo_gles2_impl_autogen.h
+++ b/mojo/gpu/mojo_gles2_impl_autogen.h
@@ -766,6 +766,9 @@ class MojoGLES2Impl : public gpu::gles2::GLES2Interface {
   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,