Share snapshot failed with gmail

[albb0920]

Gmail seems to refuse file:// from internal storage, this is not good. Maybe we can fake a content provider.

Below is how HTC Browser handle image share. INFO/Gmail(25025): Attachment uri: content://htcbrowser/share_image/data/data/com.android.browser/app_sharedimage/HQFOR58L9X.jpeg?image/jpeg

type: image/jpeg

name: /data/data/com.android.browser/app_sharedimage/HQFOR58L9X.jpeg

size: 0