Add a choice not to crash when unexpected dirty layout is encountered

third_party/WebKit/Source/core/frame/FrameView.h

Index: third_party/WebKit/Source/core/frame/FrameView.h
diff --git a/third_party/WebKit/Source/core/frame/FrameView.h b/third_party/WebKit/Source/core/frame/FrameView.h
index 8c49dc36344679d0e98243295936aad2357daca9..970d7c8e59ed2097ad1d0ee2d66f7de0136cf433 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.h
+++ b/third_party/WebKit/Source/core/frame/FrameView.h
@@ -141,7 +141,7 @@ public:
     void countObjectsNeedingLayout(unsigned& needsLayoutObjects, unsigned& totalObjects, bool& isPartial);
 
     bool needsLayout() const;
-    void checkDoesNotNeedLayout() const;
+    bool checkDoesNotNeedLayout() const;
     void setNeedsLayout();
 
     void setNeedsUpdateWidgetGeometries() { m_needsUpdateWidgetGeometries = true; }
@@ -780,7 +780,7 @@ private:
     // PaintInvalidationCapableScrollableArea
     LayoutScrollbarPart* resizer() const override { return nullptr; }
 
-    void checkLayoutInvalidationIsAllowed() const;
+    bool checkLayoutInvalidationIsAllowed() const;
 
     LayoutSize m_size;