GalleryMediaChooser supports video types and more image types also. And
video thumbnails are overlaid with the play button image to distinguish
between images and videos.
Note:
1. EXTRA_ALLOW_MULTIPLE is not specified for ACTION_GET_CONTENT.
2. Files, methods and variables' name are still including "image".
3. Content descriptions are not updated.
Test: Manual
Change-Id: I961928f150e4ae8ee80a1fba2f20c37fb5426669
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>
Taesu Lee
6c77158718