Fix crash when removing contents from a document having multiple bodies

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

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 10897245dab43bf655cf30e9ef7aeae6ede030ae..23f45719c11527a2c3f91504a38794e8f78005e3 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -2613,10 +2613,6 @@ void FrameView::synchronizedPaint()
         if (!layoutViewItem.isNull())
             layoutViewItem.layer()->clearNeedsRepaintRecursively();
     });
-
-#if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
-    DisplayItemClient::endShouldKeepAliveAllClients();
-#endif
 }
 
 void FrameView::synchronizedPaintRecursively(GraphicsLayer* graphicsLayer)