From da3df8bc188ede5f3ff24cf9ac46ae18967b6838 Mon Sep 17 00:00:00 2001
From: Marshall Greenblatt <magreenblatt@gmail.com>
Date: Fri, 1 Jun 2012 18:43:15 +0000
Subject: [PATCH] Merge revision 663 changes: - Mac: Delay destroying the
 browser window until pending drag operations have completed (issue #610).

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/963@664 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
---
 libcef/browser_webview_delegate_mac.mm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libcef/browser_webview_delegate_mac.mm b/libcef/browser_webview_delegate_mac.mm
index f11a66773..6619da1fd 100644
--- a/libcef/browser_webview_delegate_mac.mm
+++ b/libcef/browser_webview_delegate_mac.mm
@@ -399,10 +399,17 @@ void BrowserWebViewDelegate::startDragging(const WebDragData& data,
     ns_image = gfx::SkBitmapToNSImageWithColorSpace(bitmap, color_space);
   }
   NSPoint offset = NSPointFromCGPoint(gfx::Point(image_offset).ToCGPoint());
+
+  // Keep a reference to the NSView so that it won't be destroyed until after
+  // the drag operation has completed.
+  [view retain];
+
   [view startDragWithDropData:drop_data
             dragOperationMask:static_cast<NSDragOperation>(mask)
                         image:ns_image
                        offset:offset];
+
+  [view release];
 }
 
 void BrowserWebViewDelegate::runModal() {