gpu: Add a new extension CHROMIUM_deschedule.

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 550ae198b0f3ffe8708b8f968b9acd41296e94d0..cbcbf99f76020c0de60bf867fd580817c1b8b773 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -1321,6 +1321,9 @@ void GL_APIENTRY GLES2GetImageivCHROMIUM(GLuint image_id,
                                          GLint* data) {
   gles2::GetGLContext()->GetImageivCHROMIUM(image_id, param, data);
 }
+void GL_APIENTRY GLES2DescheduleUntilFinishedCHROMIUM() {
+  gles2::GetGLContext()->DescheduleUntilFinishedCHROMIUM();
+}
 void GL_APIENTRY GLES2GetTranslatedShaderSourceANGLE(GLuint shader,
                                                      GLsizei bufsize,
                                                      GLsizei* length,
@@ -2710,6 +2713,11 @@ extern const NameToFunc g_gles2_function_table[] = {
         reinterpret_cast<GLES2FunctionPointer>(glGetImageivCHROMIUM),
     },
     {
+        "glDescheduleUntilFinishedCHROMIUM",
+        reinterpret_cast<GLES2FunctionPointer>(
+            glDescheduleUntilFinishedCHROMIUM),
+    },
+    {
         "glGetTranslatedShaderSourceANGLE",
         reinterpret_cast<GLES2FunctionPointer>(
             glGetTranslatedShaderSourceANGLE),