diff --git a/layout/generic/nsGfxScrollFrame.cpp b/layout/generic/nsGfxScrollFrame.cpp
index ded1c5c5bb1b..58074312017d 100644
--- a/layout/generic/nsGfxScrollFrame.cpp
+++ b/layout/generic/nsGfxScrollFrame.cpp
@@ -505,6 +505,9 @@ nsHTMLScrollFrame::ReflowScrolledFrame(ScrollReflowState* aState,
   kidReflowState.SetComputedBSize(computedBSize);
   kidReflowState.ComputedMinBSize() = computedMinBSize;
   kidReflowState.ComputedMaxBSize() = computedMaxBSize;
+  if (aState->mReflowState.IsBResize()) {
+    kidReflowState.SetBResize(true);
+  }
 
   // Temporarily set mHasHorizontalScrollbar/mHasVerticalScrollbar to
   // reflect our assumptions while we reflow the child.
diff --git a/layout/style/nsStyleStruct.cpp b/layout/style/nsStyleStruct.cpp
index eed6e90c5008..cbca3fcc1de9 100644
--- a/layout/style/nsStyleStruct.cpp
+++ b/layout/style/nsStyleStruct.cpp
@@ -1604,7 +1604,7 @@ nsChangeHint nsStylePosition::CalcDifference(const nsStylePosition& aOther) cons
     // clear ancestor intrinsics!
     return NS_CombineHint(hint, nsChangeHint_NeedReflow |
         nsChangeHint_ClearAncestorIntrinsics |
-        nsChangeHint_ClearDescendantIntrinsics | nsChangeHint_NeedDirtyReflow |
+        nsChangeHint_ClearDescendantIntrinsics |
         nsChangeHint_ReflowChangesSizeOrPosition);
   }