[css-grid] Avoid double loop in positioned objects layout

third_party/WebKit/Source/core/layout/LayoutGrid.cpp

Index: third_party/WebKit/Source/core/layout/LayoutGrid.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutGrid.cpp b/third_party/WebKit/Source/core/layout/LayoutGrid.cpp
index cb52b7acaa913ca94f88f90c69cc728421147d4e..b727972cb354e9d01de455ebf1e1656eab40389b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutGrid.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutGrid.cpp
@@ -2482,17 +2482,11 @@ void LayoutGrid::prepareChildForPositionedLayout(LayoutBox& child) {
   childLayer->setStaticBlockPosition(borderAndPaddingBefore());
 }
 
-void LayoutGrid::layoutPositionedObjects(bool relayoutChildren,
-                                         PositionedLayoutBehavior info) {
-  TrackedLayoutBoxListHashSet* positionedDescendants = positionedObjects();
-  if (!positionedDescendants)
-    return;
-
-  for (auto* child : *positionedDescendants) {
-    if (isOrthogonalChild(*child)) {
-      // FIXME: Properly support orthogonal writing mode.
-      continue;
-    }
+void LayoutGrid::layoutPositionedObject(LayoutBox* child,

[jfernandez, 2016/11/18 16:18:22]

Ditto.

+                                        bool relayoutChildren,
+                                        PositionedLayoutBehavior info) {
+  if (!isOrthogonalChild(*child)) {
+    // FIXME: Properly support orthogonal writing mode.
 
     LayoutUnit columnOffset = LayoutUnit();
     LayoutUnit columnBreadth = LayoutUnit();
@@ -2514,7 +2508,7 @@ void LayoutGrid::layoutPositionedObjects(bool relayoutChildren,
     }
   }
 
-  LayoutBlock::layoutPositionedObjects(relayoutChildren, info);
+  LayoutBlock::layoutPositionedObject(child, relayoutChildren, info);
 }
 
 void LayoutGrid::offsetAndBreadthForPositionedChild(