Clean compositing inputs for location APIs for sticky-affected elements.

third_party/WebKit/Source/core/html/HTMLElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLElement.cpp b/third_party/WebKit/Source/core/html/HTMLElement.cpp
index 9808d052dfb2b62ac927f1fd4c252820a49e5ca0..7e0322badda3b004d19ece9c424e1662baa6bdb7 100644
--- a/third_party/WebKit/Source/core/html/HTMLElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLElement.cpp
@@ -1141,6 +1141,7 @@ const AtomicString& HTMLElement::EventParameterName() {
 }
 
 int HTMLElement::offsetLeftForBinding() {
+  EnsureLifecycleValidForLocationAPIs();
   Element* offset_parent = unclosedOffsetParent();
   if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject())
     return AdjustLayoutUnitForAbsoluteZoom(
@@ -1151,6 +1152,7 @@ int HTMLElement::offsetLeftForBinding() {
 }
 
 int HTMLElement::offsetTopForBinding() {
+  EnsureLifecycleValidForLocationAPIs();
   Element* offset_parent = unclosedOffsetParent();
   if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject())
     return AdjustLayoutUnitForAbsoluteZoom(