Move clearPaintInvalidatinFlags after subtree walk

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

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index a14833d472ec46bb10f59166a022b91d4f396abb..5747a69017b996554d55aa7ac170728860dd2a00 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -1149,16 +1149,17 @@ void LayoutObject::invalidateTreeIfNeeded(
   PaintInvalidationState newPaintInvalidationState(paintInvalidationState,
                                                    *this);
 
-  if (mayNeedPaintInvalidationSubtree())
+  if (mayNeedPaintInvalidationSubtree()) {
     newPaintInvalidationState
         .setForceSubtreeInvalidationCheckingWithinContainer();
+  }
 
   PaintInvalidationReason reason =
       invalidatePaintIfNeeded(newPaintInvalidationState);
-  clearPaintInvalidationFlags();
-
   newPaintInvalidationState.updateForChildren(reason);
   invalidatePaintOfSubtreesIfNeeded(newPaintInvalidationState);
+
+  clearPaintInvalidationFlags();
 }
 
 DISABLE_CFI_PERF