cc: Replace render surface layer list with a render surface list

cc/layers/render_surface_impl.cc

 // Copyright 2011 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.
 
 #include "cc/layers/render_surface_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 20 matching lines @@
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 
 RenderSurfaceImpl::RenderSurfaceImpl(LayerTreeImpl* layer_tree_impl,
                                      int stable_effect_id)
     : layer_tree_impl_(layer_tree_impl),
       stable_effect_id_(stable_effect_id),
       effect_tree_index_(EffectTree::kInvalidNodeId),
+      num_contributors_(0),
       has_contributing_layer_that_escapes_clip_(false),
       surface_property_changed_(false),
       ancestor_property_changed_(false),
       contributes_to_drawn_surface_(false),
+      is_render_surface_list_member_(false),
       nearest_occlusion_immune_ancestor_(nullptr) {
   damage_tracker_ = DamageTracker::Create();
 }
 
 RenderSurfaceImpl::~RenderSurfaceImpl() {}
 
 RenderSurfaceImpl* RenderSurfaceImpl::render_target() {
   EffectTree& effect_tree = layer_tree_impl_->property_trees()->effect_tree;
   EffectNode* node = effect_tree.Node(EffectTreeIndex());
   if (node->target_id != EffectTree::kRootNodeId)
@@ skipping 290 matching lines @@
   if (!is_valid_rect)
     return content_rect();
   return damage_rect;
 }
 
 void RenderSurfaceImpl::ResetPropertyChangedFlags() {
   surface_property_changed_ = false;
   ancestor_property_changed_ = false;
 }
 
-void RenderSurfaceImpl::ClearLayerLists() {
-  layer_list_.clear();
-}
-
 int RenderSurfaceImpl::GetRenderPassId() {
   return id();
 }
 
 std::unique_ptr<RenderPass> RenderSurfaceImpl::CreateRenderPass() {
-  std::unique_ptr<RenderPass> pass = RenderPass::Create(layer_list_.size());
+  std::unique_ptr<RenderPass> pass = RenderPass::Create(num_contributors_);
   gfx::Rect damage_rect = GetDamageRect();
   damage_rect.Intersect(content_rect());
   pass->SetNew(id(), content_rect(), damage_rect,
                draw_properties_.screen_space_transform);
   pass->filters = Filters();
   pass->background_filters = BackgroundFilters();
   return pass;
 }
 
 void RenderSurfaceImpl::AppendQuads(RenderPass* render_pass,
@@ skipping 166 matching lines @@
         NOTIMPLEMENTED();
         break;
       default:
         NOTREACHED();
         break;
     }
   }
 }
 
 }  // namespace cc