Fixed clip resize for document.rootScroller with inertTopControls

third_party/WebKit/Source/core/paint/PaintLayer.h

Index: third_party/WebKit/Source/core/paint/PaintLayer.h
diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.h b/third_party/WebKit/Source/core/paint/PaintLayer.h
index edda077fb96ec4880e7e43775f5cbeca25063792..33445adc5b195315b4100f1c6ad5cd802141f954 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayer.h
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.h
@@ -933,6 +933,11 @@ class CORE_EXPORT PaintLayer : public DisplayItemClient {
     m_previousPaintPhaseDescendantOutlinesWasEmpty = isEmpty;
   }
 
+  void setIsRootScroller(bool isRootScroller) {
+    m_isRootScroller = isRootScroller;
+  }
+  bool isRootScroller() { return m_isRootScroller; }
+
   // Similar to above, but for PaintPhaseFloat.
   bool needsPaintPhaseFloat() const {
     return m_needsPaintPhaseFloat && !m_previousPaintPhaseFloatWasEmpty;
@@ -1171,6 +1176,8 @@ class CORE_EXPORT PaintLayer : public DisplayItemClient {
   unsigned m_needsPaintPhaseDescendantBlockBackgrounds : 1;
   unsigned m_previousPaintPhaseDescendantBlockBackgroundsWasEmpty : 1;
 
+  unsigned m_isRootScroller : 1;
+
   // These bitfields are part of ancestor/descendant dependent compositing
   // inputs.
   unsigned m_hasDescendantWithClipPath : 1;