cc: Don't touch layer state during painting.

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index 4740816bbb011a2908c9156a93f347d7680fafa3..d23016a639ed888d04c593906965bd8020d1c129 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -941,7 +941,7 @@ void Layer::Set3dSortingContextId(int id) {
 }
 
 void Layer::SetTransformTreeIndex(int index) {
-  DCHECK(IsPropertyChangeAllowed());
+  CHECK(IsPropertyChangeAllowed());
   if (transform_tree_index_ == index)
     return;
   transform_tree_index_ = index;
@@ -958,7 +958,7 @@ int Layer::transform_tree_index() const {
 }
 
 void Layer::SetClipTreeIndex(int index) {
-  DCHECK(IsPropertyChangeAllowed());
+  CHECK(IsPropertyChangeAllowed());
   if (clip_tree_index_ == index)
     return;
   clip_tree_index_ = index;
@@ -975,7 +975,7 @@ int Layer::clip_tree_index() const {
 }
 
 void Layer::SetEffectTreeIndex(int index) {
-  DCHECK(IsPropertyChangeAllowed());
+  CHECK(IsPropertyChangeAllowed());
   if (effect_tree_index_ == index)
     return;
   effect_tree_index_ = index;
@@ -992,7 +992,7 @@ int Layer::effect_tree_index() const {
 }
 
 void Layer::SetScrollTreeIndex(int index) {
-  DCHECK(IsPropertyChangeAllowed());
+  CHECK(IsPropertyChangeAllowed());
   if (scroll_tree_index_ == index)
     return;
   scroll_tree_index_ = index;