SecurityException is thrown by ContentResolver.query() when called on
a cold start from an Activity without FLAG_GRANT_READ_URI_PERMISSION.
This flag is set automatically by the system when the app is launched
with an external uri (i.e. content://). The previous implementation
just lost all passed intent flags during Splash -> DownloadLegacy ->
MwmActivity flow.
Re-route the original intent from the system by calling setComponent()
instead of wrapping it into EXTRA_INITIAL_INTENT. The original intent
retains all the flags and a uri payload.
Check for system's FLAG_ACTIVITY_FORWARD_RESULT instead of our custom
EXTRA_PICK_POINT to detect when API caller expects a result from
the call. This approach is backward-compatible and doesn't break old
API clients. EXTRA_PICK_POINT can be safely removed from API callers.
Remove legacy EXTRA_ACTIVITY_TO_START which wasn't used in the code.
Fixes#6944#7149
Signed-off-by: Roman Tsisyk <roman@tsisyk.com>
