Add TODOs.

chrome/browser/cocoa/download_shelf_controller.mm

Index: chrome/browser/cocoa/download_shelf_controller.mm
diff --git a/chrome/browser/cocoa/download_shelf_controller.mm b/chrome/browser/cocoa/download_shelf_controller.mm
index 64c887f52d25b36128244eb9fb5067b5ea192282..122a1324470f30e0e1e3eb9e8962d7db7e802f18 100644
--- a/chrome/browser/cocoa/download_shelf_controller.mm
+++ b/chrome/browser/cocoa/download_shelf_controller.mm
@@ -147,7 +147,10 @@ const NSTimeInterval kDownloadItemOpenDuration = 0.8;
   // DownloadItem. We don't want to wait for autorelease since the DownloadItem
   // we are observing will likely be gone by then.
   [[NSNotificationCenter defaultCenter] removeObserver:download];
+
+  // TODO(dmaclach): Remove -- http://crbug.com/25845
   [[download view] removeFromSuperview];
+
   [downloadItemControllers_ removeObject:download];
 
   [self layoutItems];