cc: Move UI Resource management out of LayerTreeHost.

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 405 matching lines @@
     "resources/single_release_callback.h",
     "resources/single_release_callback_impl.cc",
     "resources/single_release_callback_impl.h",
     "resources/texture_mailbox.cc",
     "resources/texture_mailbox.h",
     "resources/transferable_resource.cc",
     "resources/transferable_resource.h",
     "resources/ui_resource_bitmap.cc",
     "resources/ui_resource_bitmap.h",
     "resources/ui_resource_client.h",
+    "resources/ui_resource_manager.cc",
+    "resources/ui_resource_manager.h",
     "resources/ui_resource_request.cc",
     "resources/ui_resource_request.h",
     "resources/video_resource_updater.cc",
     "resources/video_resource_updater.h",
     "scheduler/begin_frame_source.cc",
     "scheduler/begin_frame_source.h",
     "scheduler/begin_frame_tracker.cc",
     "scheduler/begin_frame_tracker.h",
     "scheduler/commit_earlyout_reason.cc",
     "scheduler/commit_earlyout_reason.h",
@@ skipping 598 matching lines @@
     "//testing/perf",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/gl:test_support",
   ]
 
   # This target should not require the Chrome executable to run.
   assert_no_deps = [ "//chrome" ]
 }