Zhen Zhang 31f1a34629 Add a Preference into "Network & internet" for new tethering UI ...

Adding a MasterSwitchPreference into "Network & internet" and create
corresponding controller. The preference is hidden by the feature flag.
It does NOT affect the existing UI.

Bug: 146147778
Test: CodeInspectionTest, TetherPreferenceControllerTest,
NetworkDashboardFragmentTest
Change-Id: Ida8e088efbb22d0c983acecbc420672206392dad

2020-02-12 23:55:02 -08:00

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Add a Preference into "Network & internet" for new tethering UI

2020-02-12 23:55:02 -08:00