Remove GYP annotations from chrome, ui, tools GN files.

ui/accelerated_widget_mac/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("//testing/test.gni")
 
-# GYP version: ui/accelerated_widget_mac/accelerated_widget_mac.gyp:accelerated_widget_mac
 component("accelerated_widget_mac") {
   sources = [
     "accelerated_widget_mac.h",
     "accelerated_widget_mac.mm",
     "accelerated_widget_mac_export.h",
     "ca_layer_tree_coordinator.h",
     "ca_layer_tree_coordinator.mm",
     "ca_renderer_layer_tree.h",
     "ca_renderer_layer_tree.mm",
     "display_link_mac.cc",
@@ skipping 25 matching lines @@
     "CoreGraphics.framework",
     "Foundation.framework",
     "CoreFoundation.framework",
     "CoreMedia.framework",
     "IOSurface.framework",
     "OpenGL.framework",
     "QuartzCore.framework",
   ]
 }
 
-# GYP version: ui/accelerated_widget_mac/accelerated_widget_mac.gyp:accelerated_widget_mac_unittests
 test("accelerated_widget_mac_unittests") {
   configs += [ "//build/config:precompiled_headers" ]
   sources = [
     "ca_layer_tree_unittest_mac.mm",
   ]
   deps = [
     ":accelerated_widget_mac",
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/gfx:test_support",
     "//ui/gl",
   ]
   libs = [
     "AVFoundation.framework",
     "QuartzCore.framework",
   ]
 }