[WIP] Implement BackGroundFilter as seperate layer in cc

cc/cc.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 130 matching lines @@
         'input/input_handler.h',
         'input/page_scale_animation.cc',
         'input/page_scale_animation.h',
         'input/layer_selection_bound.cc',
         'input/layer_selection_bound.h',
         'input/selection_bound_type.h',
         'input/top_controls_manager.cc',
         'input/top_controls_manager.h',
         'input/top_controls_manager_client.h',
         'layers/append_quads_data.h',
+        'layers/background_filter_layer.cc',
+        'layers/background_filter_layer.h',
+        'layers/background_filter_layer_impl.cc',
+        'layers/background_filter_layer_impl.h',
         'layers/content_layer.cc',
         'layers/content_layer.h',
         'layers/content_layer_client.h',
         'layers/contents_scaling_layer.cc',
         'layers/contents_scaling_layer.h',
         'layers/delegated_frame_provider.cc',
         'layers/delegated_frame_provider.h',
         'layers/delegated_frame_resource_collection.cc',
         'layers/delegated_frame_resource_collection.h',
         'layers/delegated_renderer_layer.cc',
@@ skipping 147 matching lines @@
         'quads/checkerboard_draw_quad.cc',
         'quads/checkerboard_draw_quad.h',
         'quads/content_draw_quad_base.cc',
         'quads/content_draw_quad_base.h',
         'quads/debug_border_draw_quad.cc',
         'quads/debug_border_draw_quad.h',
         'quads/draw_polygon.cc',
         'quads/draw_polygon.h',
         'quads/draw_quad.cc',
         'quads/draw_quad.h',
+        'quads/filter_draw_quad.cc',
+        'quads/filter_draw_quad.h',
         'quads/io_surface_draw_quad.cc',
         'quads/io_surface_draw_quad.h',
         'quads/largest_draw_quad.h',
         'quads/picture_draw_quad.cc',
         'quads/picture_draw_quad.h',
         'quads/render_pass.cc',
         'quads/render_pass.h',
         'quads/render_pass_draw_quad.cc',
         'quads/render_pass_draw_quad.h',
         'quads/shared_quad_state.cc',
@@ skipping 194 matching lines @@
         'surfaces/surface_id_allocator.h',
         'surfaces/surface_manager.cc',
         'surfaces/surface_manager.h',
         'surfaces/surface_resource_holder.cc',
         'surfaces/surface_resource_holder.h',
         'surfaces/surfaces_export.h',
       ],
     },
   ],
 }