Bug 761785: Background shown during overscroll disappeared. [r=kats]

mobile/android/base/Makefile.in

@@ -391,7 +391,6 @@ RES_ANIM = \
 
 RES_DRAWABLE_NODPI = \
   res/drawable-nodpi/abouthome_bg.png \
-  res/drawable-nodpi/background.png \
   res/drawable-nodpi/tabs_tray_bg.png \
   res/drawable-nodpi/tabs_tray_selected_bg.png \
   $(NULL)

mobile/android/base/gfx/LayerController.java

@@ -120,7 +120,7 @@ public class LayerController {
         return mViewportMetrics.zoomFactor;
     }
 
-    public Bitmap getBackgroundPattern()    { return getDrawable("background"); }
+    public Bitmap getBackgroundPattern()    { return getDrawable("tabs_tray_selected_bg"); }
     public Bitmap getShadowPattern()        { return getDrawable("shadow"); }
 
     public PanZoomController getPanZoomController()                                 { return mPanZoomController; }