Use stricter typing for NodeLists throughout the code base

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 6641e81cd0c15ffbdec3464236b420c6af5d5a7b..79699cc72c318a72ba6cbc2b9e435da21564cfe0 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -338,20 +338,6 @@ public:
 
     bool regionBasedColumnsEnabled() const;
 
-    /**
-     * Retrieve all nodes that intersect a rect in the window's document, until it is fully enclosed by
-     * the boundaries of a node.
-     *
-     * @param centerX x reference for the rectangle in CSS pixels
-     * @param centerY y reference for the rectangle in CSS pixels
-     * @param topPadding How much to expand the top of the rectangle
-     * @param rightPadding How much to expand the right of the rectangle
-     * @param bottomPadding How much to expand the bottom of the rectangle
-     * @param leftPadding How much to expand the left of the rectangle
-     */
-    PassRefPtrWillBeRawPtr<NodeList> nodesFromRect(int centerX, int centerY,
-        unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding,
-        HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent) const;
     Element* elementFromPoint(int x, int y) const;
     PassRefPtrWillBeRawPtr<Range> caretRangeFromPoint(int x, int y);
 
@@ -1161,8 +1147,6 @@ private:
 
     void executeScriptsWaitingForResourcesTimerFired(Timer<Document>*);
 
-    PassRefPtrWillBeRawPtr<NodeList> handleZeroPadding(const HitTestRequest&, HitTestResult&) const;
-
     void loadEventDelayTimerFired(Timer<Document>*);
     void pluginLoadingTimerFired(Timer<Document>*);