Introduce GLStubApi

ui/gl/BUILD.gn

 # 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.
 
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 use_egl = is_win || is_android || is_linux
 use_glx = use_x11
@@ skipping 78 matching lines @@
     "gl_implementation.h",
     "gl_implementation_android.cc",
     "gl_implementation_mac.cc",
     "gl_implementation_win.cc",
     "gl_osmesa_api_implementation.cc",
     "gl_osmesa_api_implementation.h",
     "gl_share_group.cc",
     "gl_share_group.h",
     "gl_state_restorer.cc",
     "gl_state_restorer.h",
+    "gl_stub_api.cc",
+    "gl_stub_api.h",
+    "gl_stub_api_base.h",
+    "gl_stub_autogen_gl.cc",
+    "gl_stub_autogen_gl.h",
     "gl_surface.cc",
     "gl_surface.h",
     "gl_surface_osmesa.cc",
     "gl_surface_osmesa.h",
     "gl_surface_overlay.cc",
     "gl_surface_overlay.h",
     "gl_surface_stub.cc",
     "gl_surface_stub.h",
     "gl_switches.cc",
     "gl_switches.h",
@@ skipping 300 matching lines @@
     sources = [
       "../android/java/src/org/chromium/ui/gl/SurfaceTextureListener.java",
       "../android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java",
     ]
     public_deps = [
       ":surface_jni_headers",
     ]
     jni_package = "ui/gl"
   }
 }