Bug 1018324 Add scrollElementIntoView to inIDOMUtils as inIFlasher is going away r=roc

layout/inspector/inDOMUtils.cpp

@@ -878,3 +878,22 @@ inDOMUtils::ParseStyleSheet(nsIDOMCSSStyleSheet *aSheet,
 
   return sheet->ParseSheet(aInput);
 }
+
+NS_IMETHODIMP
+inDOMUtils::ScrollElementIntoView(nsIDOMElement *aElement)
+{
+  nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
+  NS_ENSURE_ARG_POINTER(content);
+
+  nsIPresShell* presShell = content->OwnerDoc()->GetShell();
+  if (!presShell) {
+    return NS_OK;
+  }
+
+  presShell->ScrollContentIntoView(content,
+                                   nsIPresShell::ScrollAxis(),
+                                   nsIPresShell::ScrollAxis(),
+                                   nsIPresShell::SCROLL_OVERFLOW_HIDDEN);
+
+  return NS_OK;
+}

layout/inspector/inIDOMUtils.idl

@@ -16,7 +16,7 @@ interface nsIDOMFontFaceList;
 interface nsIDOMRange;
 interface nsIDOMCSSStyleSheet;
 
-[scriptable, uuid(ceae6c68-f5d4-4597-a3d9-ca5646c25f1a)]
+[scriptable, uuid(948792a7-b786-4a2c-910d-f55b0773c2ca)]
 interface inIDOMUtils : nsISupports
 {
   // CSS utilities
@@ -103,6 +103,13 @@ interface inIDOMUtils : nsISupports
    *        The new source string for the style sheet.
    */
   void parseStyleSheet(in nsIDOMCSSStyleSheet aSheet, in DOMString aInput);
+  /**
+   * Scroll an element completely into view, if possible.
+   * This is similar to ensureElementIsVisible but for all ancestors.
+   *
+   * @param DOMElement aElement
+   */
+  void scrollElementIntoView(in nsIDOMElement aElement);
 };
 
 %{ C++