fixed resource leak.

gfx/src/windows/nsRegionWin.cpp

@@ -30,7 +30,11 @@ nsRegionWin :: nsRegionWin()
 
 nsRegionWin :: ~nsRegionWin()
 {
-  mRegion = NULL;
+  if (NULL != mRegion)
+  {
+    ::DeleteObject(mRegion);
+    mRegion = NULL;
+  }
 }
 
 NS_IMPL_QUERY_INTERFACE(nsRegionWin, kRegionIID)

widget/src/windows/nsScrollbar.cpp

@@ -38,6 +38,11 @@ nsScrollbar::nsScrollbar(PRBool aIsVertical) : nsWindow(), nsIScrollbar()
   mScaleFactor   = 1.0f;
   mLineIncrement = 0;
   mBackground    = ::GetSysColor(COLOR_SCROLLBAR);
+
+  //prevent resource leaks..
+  if (mBrush)
+    ::DeleteObject(mBrush);
+
   mBrush         = ::CreateSolidBrush(NSRGB_2_COLOREF(mBackground));
 }