Revert of Idle cleanup for worker context

cc/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")
 import("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
@@ skipping 196 matching lines @@
     "output/color_lut_cache.h",
     "output/compositor_frame.cc",
     "output/compositor_frame.h",
     "output/compositor_frame_metadata.cc",
     "output/compositor_frame_metadata.h",
     "output/compositor_frame_sink.cc",
     "output/compositor_frame_sink.h",
     "output/compositor_frame_sink_client.h",
     "output/context_cache_controller.cc",
     "output/context_cache_controller.h",
-    "output/context_provider.cc",
     "output/context_provider.h",
     "output/copy_output_request.cc",
     "output/copy_output_request.h",
     "output/copy_output_result.cc",
     "output/copy_output_result.h",
     "output/delegated_frame_data.cc",
     "output/delegated_frame_data.h",
     "output/direct_renderer.cc",
     "output/direct_renderer.h",
     "output/dynamic_geometry_binding.cc",
@@ skipping 828 matching lines @@
     "//ui/gl:test_support",
   ]
 
   # This target should not require the Chrome executable to run.
   assert_no_deps = [ "//chrome" ]
 
   data = [
     "test/data/",
   ]
 }