Update from https://crrev.com/312600

gpu/command_buffer/client/gles2_c_lib_autogen.h

Index: gpu/command_buffer/client/gles2_c_lib_autogen.h
diff --git a/gpu/command_buffer/client/gles2_c_lib_autogen.h b/gpu/command_buffer/client/gles2_c_lib_autogen.h
index 597ab2e871ef3cbec296b75a0af25bff50cfce3b..cd3bd7fd26eaf04fdaaa499bcc37eb54b3274147 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -205,6 +205,9 @@ void GLES2DeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers) {
 void GLES2DeleteSamplers(GLsizei n, const GLuint* samplers) {
   gles2::GetGLContext()->DeleteSamplers(n, samplers);
 }
+void GLES2DeleteSync(GLsync sync) {
+  gles2::GetGLContext()->DeleteSync(sync);
+}
 void GLES2DeleteShader(GLuint shader) {
   gles2::GetGLContext()->DeleteShader(shader);
 }
@@ -247,6 +250,9 @@ void GLES2Enable(GLenum cap) {
 void GLES2EnableVertexAttribArray(GLuint index) {
   gles2::GetGLContext()->EnableVertexAttribArray(index);
 }
+GLsync GLES2FenceSync(GLenum condition, GLbitfield flags) {
+  return gles2::GetGLContext()->FenceSync(condition, flags);
+}
 void GLES2Finish() {
   gles2::GetGLContext()->Finish();
 }
@@ -467,6 +473,9 @@ GLboolean GLES2IsSampler(GLuint sampler) {
 GLboolean GLES2IsShader(GLuint shader) {
   return gles2::GetGLContext()->IsShader(shader);
 }
+GLboolean GLES2IsSync(GLsync sync) {
+  return gles2::GetGLContext()->IsSync(sync);
+}
 GLboolean GLES2IsTexture(GLuint texture) {
   return gles2::GetGLContext()->IsTexture(texture);
 }
@@ -1384,6 +1393,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glDeleteSamplers),
     },
     {
+     "glDeleteSync",
+     reinterpret_cast<GLES2FunctionPointer>(glDeleteSync),
+    },
+    {
      "glDeleteShader",
      reinterpret_cast<GLES2FunctionPointer>(glDeleteShader),
     },
@@ -1436,6 +1449,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glEnableVertexAttribArray),
     },
     {
+     "glFenceSync",
+     reinterpret_cast<GLES2FunctionPointer>(glFenceSync),
+    },
+    {
      "glFinish",
      reinterpret_cast<GLES2FunctionPointer>(glFinish),
     },
@@ -1645,6 +1662,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glIsShader),
     },
     {
+     "glIsSync",
+     reinterpret_cast<GLES2FunctionPointer>(glIsSync),
+    },
+    {
      "glIsTexture",
      reinterpret_cast<GLES2FunctionPointer>(glIsTexture),
     },