(no bug) Fix 2 comment typos: s/scrol/scroll/ in "scrolbar" and "ScrolLeft". Comment-only, DONTBUILD

content/base/public/nsISelectionController.idl

@@ -224,7 +224,7 @@ interface nsISelectionController : nsISelectionDisplay
    */
     void scrollPage(in boolean forward);
 
-  /** ScrolLine will scroll line up or down dependent on the boolean
+  /** ScrollLine will scroll line up or down dependent on the boolean
    *  @param aForward scroll forward or backwards in selection
    */
 	  void scrollLine(in boolean forward);

layout/forms/nsSelectsAreaFrame.cpp

@@ -199,7 +199,7 @@ nsSelectsAreaFrame::Reflow(nsPresContext*           aPresContext,
                                     aReflowState, aStatus);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  // Check whether we need to suppress scrolbar updates.  We want to do that if
+  // Check whether we need to suppress scrollbar updates.  We want to do that if
   // we're in a possible first pass and our height of a row has changed.
   if (list->MightNeedSecondPass()) {
     nscoord newHeightOfARow = list->CalcHeightOfARow();