Move all CARendererLayerTree parameters to separate struct.

ui/accelerated_widget_mac/accelerated_widget_mac.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       # GN version: //ui/accelerated_widget_mac
       'target_name': 'accelerated_widget_mac',
       'type': '<(component)',
       '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_params.cc',
+        'ca_renderer_layer_params.h',
         'ca_renderer_layer_tree.h',
         'ca_renderer_layer_tree.mm',
         'display_link_mac.cc',
         'display_link_mac.h',
         'fullscreen_low_power_coordinator.h',
         'gl_renderer_layer_tree.h',
         'gl_renderer_layer_tree.mm',
         'io_surface_context.h',
         'io_surface_context.mm',
         'window_resize_helper_mac.cc',
@@ skipping 38 matching lines @@
         'ca_layer_tree_unittest_mac.mm',
       ],
       'link_settings': {
         'libraries': [
           '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
         ],
       },
     },
   ],
 }