cc: nine patch: add occlusion support

ui/compositor/layer.cc

 // 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.
 
 #include "ui/compositor/layer.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
@@ skipping 632 matching lines @@
 }
 
 void Layer::UpdateNinePatchLayerAperture(const gfx::Rect& aperture_in_dip) {
   DCHECK(type_ == LAYER_NINE_PATCH && nine_patch_layer_.get());
   nine_patch_layer_aperture_ = aperture_in_dip;
   gfx::Rect aperture_in_pixel = ConvertRectToPixel(this, aperture_in_dip);
   nine_patch_layer_->SetAperture(aperture_in_pixel);
 }
 
 void Layer::UpdateNinePatchLayerBorder(const gfx::Rect& border) {
+  DCHECK_EQ(type_, LAYER_NINE_PATCH);
+  DCHECK(nine_patch_layer_.get());
+  nine_patch_layer_->SetBorder(border);
+}
+
+void Layer::UpdateNinePatchOcclusion(const gfx::Rect& occlusion) {
   DCHECK(type_ == LAYER_NINE_PATCH && nine_patch_layer_.get());
-  nine_patch_layer_->SetBorder(border);
+  nine_patch_layer_->SetLayerOcclusion(occlusion);
 }
 
 void Layer::SetColor(SkColor color) { GetAnimator()->SetColor(color); }
 
 SkColor Layer::GetTargetColor() {
   if (GetAnimator()->IsAnimatingProperty(LayerAnimationElement::COLOR))
     return GetAnimator()->GetTargetColor();
   return cc_layer_->background_color();
 }
 
@@ skipping 170 matching lines @@
       std::find(children_.begin(), children_.end(), child) - children_.begin();
   const size_t other_i =
       std::find(children_.begin(), children_.end(), other) - children_.begin();
   if ((above && child_i == other_i + 1) || (!above && child_i + 1 == other_i))
     return;
 
   const size_t dest_i =
       above ?
       (child_i < other_i ? other_i : other_i + 1) :
       (child_i < other_i ? other_i - 1 : other_i);
+
   children_.erase(children_.begin() + child_i);
   children_.insert(children_.begin() + dest_i, child);
 
   child->cc_layer_->RemoveFromParent();
   cc_layer_->InsertChild(child->cc_layer_, dest_i);
 }
 
 bool Layer::ConvertPointForAncestor(const Layer* ancestor,
                                     gfx::Point* point) const {
   gfx::Transform transform;
@@ skipping 205 matching lines @@
   if (animator_) {
     animator_->ResetCompositor(compositor);
     animator_->RemoveFromCollection(collection);
   }
 
   for (auto* child : children_)
     child->ResetCompositorForAnimatorsInTree(compositor);
 }
 
 }  // namespace ui