Previously everything lived in an inner class method of
SettingsRobolectricTestRunner. That method has now been turned into
a static method so that it can be called by other runners.
Bug: 62460102
Test: robotests
Change-Id: I6612b1f26404587301c534c8ba60e39d59d6c840
The implementations have been imported into SettingsLib. Setting's copy
can now be removed, which this change also does.
Test: Manually check battery status, which uses FooterMixin, looks OK.
make RunSettingsLibRobotTests && make RunSettingsRoboTests
&& make RunSettingsGoogleRoboTests
Change-Id: I6539605fdad80d156ff5ff249e68df4a1c412067
Bug:34719854
Test: make -j40 RunSettingsRoboTests
clicked on preferences and made sure functionality did not change.
Change-Id: Ia5f0c7f5ea0f88d1322008ab58ca79028cc1a2bb
