Mark when we may have been invalidated to early out on repaintTreeAfterLayout.

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 66e6126d4009e68919bbc0b2771651602a68ec54..b697f22c4346be117bd16fc0042f3c669f306667 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -362,8 +362,13 @@ void RenderBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldSty
 
 void RenderBlock::repaintTreeAfterLayout()
 {
+    bool checkInvalidations = shouldCheckForInvalidations();
+
     RenderBox::repaintTreeAfterLayout();
 
+    if (!checkInvalidations)

[leviw_travelin_and_unemployed, 2014/05/05 18:52:32]

What does the call to RenderBox::repaintTreeAfterLayout get us in the case that
checkInvalidations was false? Won't it bail early as well?

[dsinclair, 2014/05/05 19:38:26]

Done.

+        return;
+
     // Take care of positioned objects. This is required as LayoutState keeps a single clip rect.
     if (TrackedRendererListHashSet* positionedObjects = this->positionedObjects()) {
         TrackedRendererListHashSet::iterator end = positionedObjects->end();