Make the gtk download shelf autoclose on mouse out.

chrome/browser/ui/gtk/download_item_gtk.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/gtk/download_item_gtk.h"
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
@@ skipping 781 matching lines @@
   if (child)
     gtk_container_propagate_expose(GTK_CONTAINER(widget), child, e);
 
   return TRUE;
 }
 
 void DownloadItemGtk::OnClick(GtkWidget* widget) {
   UMA_HISTOGRAM_LONG_TIMES("clickjacking.open_download",
                            base::Time::Now() - creation_time_);
   get_download()->OpenDownload();
+  parent_shelf_->ItemOpened();
 }
 
 gboolean DownloadItemGtk::OnProgressAreaExpose(GtkWidget* widget,
                                                GdkEventExpose* event) {
   // Create a transparent canvas.
   gfx::CanvasSkiaPaint canvas(event, false);
   if (complete_animation_.get()) {
     if (complete_animation_->is_animating()) {
       download_util::PaintDownloadComplete(&canvas,
           widget->allocation.x, widget->allocation.y,
@@ skipping 58 matching lines @@
   get_download()->DangerousDownloadValidated();
 }
 
 void DownloadItemGtk::OnDangerousDecline(GtkWidget* button) {
   UMA_HISTOGRAM_LONG_TIMES("clickjacking.discard_download",
                            base::Time::Now() - creation_time_);
   if (get_download()->state() == DownloadItem::IN_PROGRESS)
     get_download()->Cancel(true);
   get_download()->Remove(true);
 }