cc : Stop pushing properties not used by LayerImpl to LayerImpl. (2)

cc/layers/layer_impl.cc

 // Copyright 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.
 
 #include "cc/layers/layer_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 41 matching lines @@
       replica_layer_id_(-1),
       replica_layer_(nullptr),
       layer_id_(id),
       layer_tree_impl_(tree_impl),
       test_properties_(nullptr),
       scroll_clip_layer_id_(Layer::INVALID_ID),
       main_thread_scrolling_reasons_(
           MainThreadScrollingReason::kNotScrollingOnMain),
       user_scrollable_horizontal_(true),
       user_scrollable_vertical_(true),
-      double_sided_(true),
       should_flatten_transform_(true),
       should_flatten_transform_from_property_tree_(false),
       layer_property_changed_(false),
       masks_to_bounds_(false),
       contents_opaque_(false),
       is_root_for_isolated_group_(false),
       use_parent_backface_visibility_(false),
       use_local_transform_for_backface_visibility_(false),
       should_check_backface_visibility_(false),
       draws_content_(false),
@@ skipping 10 matching lines @@
       num_descendants_that_draw_content_(0),
       transform_tree_index_(-1),
       effect_tree_index_(-1),
       clip_tree_index_(-1),
       scroll_tree_index_(-1),
       sorting_context_id_(0),
       current_draw_mode_(DRAW_MODE_NONE),
       element_id_(0),
       mutable_properties_(MutableProperty::kNone),
       debug_info_(nullptr),
-      force_render_surface_(false),
       scrolls_drawn_descendant_(false),
       layer_or_descendant_has_touch_handler_(false) {
   DCHECK_GT(layer_id_, 0);
 
   DCHECK(layer_tree_impl_);
   layer_tree_impl_->RegisterLayer(this);
   layer_tree_impl_->AddToElementMap(this);
 
   SetNeedsPushProperties();
 }
@@ skipping 377 matching lines @@
     }
   }
 
   main_thread_scrolling_reasons_ = main_thread_scrolling_reasons;
 }
 
 void LayerImpl::PushPropertiesTo(LayerImpl* layer) {
   layer->SetBackgroundColor(background_color_);
   layer->SetSafeOpaqueBackgroundColor(safe_opaque_background_color_);
   layer->SetBounds(bounds_);
-  layer->SetDoubleSided(double_sided_);
   layer->SetDrawsContent(DrawsContent());
   layer->SetHideLayerAndSubtree(hide_layer_and_subtree_);
   // If whether layer has render surface changes, we need to update draw
   // properties.
   // TODO(weiliangc): Should be safely removed after impl side is able to
   // update render surfaces without rebuilding property trees.
   if (layer->has_render_surface() != has_render_surface())
     layer->layer_tree_impl()->set_needs_update_draw_properties();
   layer->SetHasRenderSurface(!!render_surface());
-  layer->SetForceRenderSurface(force_render_surface_);
   layer->SetFilters(filters());
   layer->SetBackgroundFilters(background_filters());
   layer->SetMasksToBounds(masks_to_bounds_);
   layer->set_main_thread_scrolling_reasons(main_thread_scrolling_reasons_);
   layer->SetNonFastScrollableRegion(non_fast_scrollable_region_);
   layer->SetTouchEventHandlerRegion(touch_event_handler_region_);
   layer->SetContentsOpaque(contents_opaque_);
   layer->SetOpacity(opacity_);
   layer->SetBlendMode(blend_mode_);
   layer->SetIsRootForIsolatedGroup(is_root_for_isolated_group_);
@@ skipping 793 matching lines @@
     TransformNode* node = transform_tree.Node(transform_tree_index_);
     gfx::ScrollOffset current_offset = CurrentScrollOffset();
     if (node->data.scroll_offset != current_offset) {
       node->data.scroll_offset = current_offset;
       node->data.needs_local_transform_update = true;
       transform_tree.set_needs_update(true);
     }
   }
 }
 
-void LayerImpl::SetDoubleSided(bool double_sided) {
-  if (double_sided_ == double_sided)
-    return;
-
-  double_sided_ = double_sided;
-}
-
 SimpleEnclosedRegion LayerImpl::VisibleOpaqueRegion() const {
   if (contents_opaque())
     return SimpleEnclosedRegion(visible_layer_rect());
   return SimpleEnclosedRegion();
 }
 
 void LayerImpl::DidBeginTracing() {}
 
 void LayerImpl::ReleaseResources() {}
 
@@ skipping 175 matching lines @@
 gfx::Transform LayerImpl::ScreenSpaceTransform() const {
   // Only drawn layers have up-to-date draw properties.
   if (!IsDrawnRenderSurfaceLayerListMember()) {
     return draw_property_utils::ScreenSpaceTransform(
         this, layer_tree_impl()->property_trees()->transform_tree);
   }
 
   return draw_properties().screen_space_transform;
 }
 
-void LayerImpl::SetForceRenderSurface(bool force_render_surface) {
-  if (force_render_surface == force_render_surface_)
-    return;
-
-  force_render_surface_ = force_render_surface;
-  NoteLayerPropertyChanged();
-}
-
 Region LayerImpl::GetInvalidationRegionForDebugging() {
   return Region(update_rect_);
 }
 
 gfx::Rect LayerImpl::GetEnclosingRectInTargetSpace() const {
   return MathUtil::MapEnclosingClippedRect(DrawTransform(),
                                            gfx::Rect(bounds()));
 }
 
 gfx::Rect LayerImpl::GetScaledEnclosingRectInTargetSpace(float scale) const {
@@ skipping 60 matching lines @@
            .layer_transforms_should_scale_layer_contents) {
     return default_scale;
   }
 
   gfx::Vector2dF transform_scales = MathUtil::ComputeTransform2dScaleComponents(
       DrawTransform(), default_scale);
   return std::max(transform_scales.x(), transform_scales.y());
 }
 
 }  // namespace cc