tree 08bcb8fd7485f514bd3e276d2e90f789b6ad12fc
parent a6ea64afc0d28b223714199ed564b5297e7cc34d
author YoungSeok Yoon <youngseokyoon@google.com> 1449876472 -0800
committer YoungSeok Yoon <youngseokyoon@google.com> 1449876472 -0800

reader/android: request external storage access permission on Android M+

The log creation was failing on Android M+ because the external
storage permission was not properly granted by the user.
(cf.http://developer.android.com/training/permissions/requesting.html)

This CL explicitly requests the permission, and reinitialize the
loggers once the permission is granted. The logcat code was moved to a
separate DebugUtils class, which could be pushed to the baku-toolkit
level in the future.

Change-Id: Iffc325330f8815d31649e6a8fb62969a7b7f479f