Clean up GLSurfaceCGL

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/ui.gni")
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 gl_binding_output_dir = target_gen_dir
@@ skipping 180 matching lines @@
 
     libs = [ "dwmapi.lib" ]
     ldflags = [ "/DELAYLOAD:dwmapi.dll" ]
   }
   if (is_mac) {
     sources += [
       "gl_context_cgl.cc",
       "gl_context_cgl.h",
       "gl_image_io_surface.cc",
       "gl_image_io_surface.h",
-      "gl_surface_cgl.cc",
-      "gl_surface_cgl.h",
       "scoped_cgl.cc",
       "scoped_cgl.h",
     ]
 
     libs = [ "OpenGL.framework" ]
   }
   if (is_android) {
     sources += [
       "gl_egl_api_implementation.cc",
       "gl_egl_api_implementation.h",
@@ skipping 118 matching lines @@
   generate_jni("gl_jni_headers") {
     deps = [ ":surface_jni_headers" ]
     forward_dependent_configs_from = [ ":surface_jni_headers" ]
     sources = [
       "../android/java/src/org/chromium/ui/gl/SurfaceTextureListener.java",
       "../android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java",
     ]
     jni_package = "ui/gl"
   }
 }