Draw Transform of Render Surface From Property Trees

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 <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
@@ skipping 53 matching lines @@
 
 float RenderSurfaceImpl::GetReplicaDebugBorderWidth() const {
   return DebugColors::SurfaceReplicaBorderWidth(
       owning_layer_->layer_tree_impl());
 }
 
 int RenderSurfaceImpl::OwningLayerId() const {
   return owning_layer_ ? owning_layer_->id() : 0;
 }
 
+int RenderSurfaceImpl::TransformTreeIndex() const {
+  return owning_layer_ ? owning_layer_->transform_tree_index() : 0;

[ajuma, 2015/07/23 15:57:03]

I don't think owning_layer_ will ever be null (despite the function above having
a null check; owning_layer_ is used elsewhere in this file without a null
check). (Aside: the 'null' index for property trees is -1, not 0.)

[jaydasika, 2015/07/23 16:56:26]

Done.

+}
 
 void RenderSurfaceImpl::SetClipRect(const gfx::Rect& clip_rect) {
   if (clip_rect_ == clip_rect)
     return;
 
   surface_property_changed_ = true;
   clip_rect_ = clip_rect;
 }
 
 void RenderSurfaceImpl::SetContentRect(const gfx::Rect& content_rect) {
@@ skipping 114 matching lines @@
   RenderPassDrawQuad* quad =
       render_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
   quad->SetNew(shared_quad_state, content_rect_, visible_layer_rect,
                render_pass_id, mask_resource_id, mask_uv_scale,
                mask_texture_size, owning_layer_->filters(),
                owning_layer_to_target_scale,
                owning_layer_->background_filters());
 }
 
 }  // namespace cc