Revert "Issue #1355 - Better way to create display items for column backgrounds"

This reverts commit 44c47c50388f526c2d134e16d5debebe94a0faf8.

1 files changed, 1 insertions, 4 deletions

diff --git a/layout/generic/nsIScrollableFrame.h b/layout/generic/nsIScrollableFrame.h
index 20a598452..b7e3caf46 100644
--- a/layout/generic/nsIScrollableFrame.h
+++ b/layout/generic/nsIScrollableFrame.h
@@ -440,16 +440,13 @@ public:
   /**
    * Determine if we should build a scrollable layer for this scroll frame and
    * return the result. It will also record this result on the scroll frame.
-   * Pass the visible rect in aVisibleRect. On return it will be set to the
-   * displayport if there is one.
    * Pass the dirty rect in aDirtyRect. On return it will be set to the
-   * dirty rect inside the displayport (ie the dirty rect that should be used).
+   * displayport if there is one (ie the dirty rect that should be used).
    * This function may create a display port where one did not exist before if
    * aAllowCreateDisplayPort is true. It is only allowed to be false if there
    * has been a call with it set to true before on the same paint.
    */
   virtual bool DecideScrollableLayer(nsDisplayListBuilder* aBuilder,
-                                     nsRect* aVisibleRect,
                                      nsRect* aDirtyRect,
                                      bool aAllowCreateDisplayPort) = 0;