Remove QuadCuller class and make QuadSink concrete

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.
 
 component("cc") {
   sources = [
     "animation/animation.cc",
     "animation/animation.h",
     "animation/animation_curve.cc",
     "animation/animation_curve.h",
@@ skipping 147 matching lines @@
     "layers/painted_scrollbar_layer_impl.h",
     "layers/picture_image_layer.cc",
     "layers/picture_image_layer.h",
     "layers/picture_image_layer_impl.cc",
     "layers/picture_image_layer_impl.h",
     "layers/picture_layer.cc",
     "layers/picture_layer.h",
     "layers/picture_layer_impl.cc",
     "layers/picture_layer_impl.h",
     "layers/quad_sink.h",
+    "layers/quad_sink.cc",
     "layers/render_pass_sink.h",
     "layers/render_surface.cc",
     "layers/render_surface.h",
     "layers/render_surface_impl.cc",
     "layers/render_surface_impl.h",
     "layers/scrollbar_layer_impl_base.cc",
     "layers/scrollbar_layer_impl_base.h",
     "layers/scrollbar_layer_interface.h",
     "layers/solid_color_layer.cc",
     "layers/solid_color_layer.h",
@@ skipping 245 matching lines @@
     "trees/layer_tree_impl.cc",
     "trees/layer_tree_impl.h",
     "trees/layer_tree_settings.cc",
     "trees/layer_tree_settings.h",
     "trees/occlusion_tracker.cc",
     "trees/occlusion_tracker.h",
     "trees/proxy.cc",
     "trees/proxy.h",
     "trees/proxy_timing_history.cc",
     "trees/proxy_timing_history.h",
-    "trees/quad_culler.cc",
-    "trees/quad_culler.h",
     "trees/single_thread_proxy.cc",
     "trees/single_thread_proxy.h",
     "trees/thread_proxy.cc",
     "trees/thread_proxy.h",
     "trees/tree_synchronizer.cc",
     "trees/tree_synchronizer.h",
   ]
 
   if (is_win) {
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
@@ skipping 110 matching lines @@
     "test/layer_test_common.cc",
     "test/layer_test_common.h",
     "test/layer_tree_host_common_test.cc",
     "test/layer_tree_host_common_test.h",
     "test/layer_tree_json_parser.cc",
     "test/layer_tree_json_parser.h",
     "test/layer_tree_pixel_test.cc",
     "test/layer_tree_pixel_test.h",
     "test/layer_tree_test.cc",
     "test/layer_tree_test.h",
+    "test/mock_occlusion_tracker.h",
     "test/mock_quad_culler.cc",
     "test/mock_quad_culler.h",
     "test/ordered_texture_map.cc",
     "test/ordered_texture_map.h",
     "test/paths.cc",
     "test/paths.h",
     "test/pixel_comparator.cc",
     "test/pixel_comparator.h",
     "test/pixel_test.cc",
     "test/pixel_test.h",
@@ skipping 197 matching lines @@
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 }
 
 test("cc_perftests") {
   # TODO(GYP)
 }
 
 }  # if false