Merge "Refine zoom in and zoom out transition of iamge wallpaper." into qt-dev...
Merge "Refine zoom in and zoom out transition of iamge wallpaper." into qt-dev am: 9bd11895 am: 29d7f107
am: a8467f35
Change-Id: I5939511ab5b0ed7099f8384ee015d9f3def16af8