1. transcode_enabled: s/false/true/
2. transcode_default: s/false/true/
This is to maintain consistence with the MediaProvider defaults and it
only affects the 'checked' state when a user hasn't checked anything
Test: Manual
Bug: 175309276
Change-Id: Ic81490a944407e30f9cd207f64f2a0f5530a23d3
If the user enables this, then that means that we will respect user's
choices for all the preferences, i.e. we will not update the preferences
based on the updates from server.
On the other hand, if it's disabled, then the rest of the preferences
would not be considered. And we'd decide their values based on the
values from the DeviceConfig (which in turn come from the server).
The controller for the default-transcoding-behavior for apps was also
added.
Also, renaming the set prop key for enabling-transcode to match the one
in DeviceConfig - transcode_enabled.
And while we were at it, we renamed the stirng from "disabling
transcoding for all apps" to "enabling transcoding for all apps"; and
also changed the controller to enable (instead of disable) transcoding.
BUG:169327180
Test: manual testing. And added unit test for
TranscodeUserControlPreferenceControllerTest.
Change-Id: If9b9face51b669f5177be8bfa18f44471f531058