Bug 722406 - Part a: Introduce nsISelection::CollapseNative; r=smaug

content/base/public/nsISelection.idl

@@ -41,6 +41,7 @@
 
 interface nsIDOMNode;
 interface nsIDOMRange;
+interface nsINode;
 
 /**
  * Interface for manipulating and querying the current selected range
@@ -95,7 +96,7 @@ interface nsISelection : nsISupports
      * @param offset          Where in given dom node to place the selection (the offset into the given node)
      */
     void collapse(in nsIDOMNode parentNode, in long offset);
-
+    [noscript] void collapseNative(in nsINode parentNode, in long offset);
 
     /**
      * Extends the selection by moving the selection end to the specified node and offset,

layout/generic/nsSelection.cpp

@@ -4864,6 +4864,12 @@ nsTypedSelection::Collapse(nsIDOMNode* aParentNode, PRInt32 aOffset)
   return Collapse(parentNode, aOffset);
 }
 
+NS_IMETHODIMP
+nsTypedSelection::CollapseNative(nsINode* aParentNode, PRInt32 aOffset)
+{
+  return Collapse(aParentNode, aOffset);
+}
+
 nsresult
 nsTypedSelection::Collapse(nsINode* aParentNode, PRInt32 aOffset)
 {