The toolbar needs to be disabled to remove the empty space at the top
of the page. Also added the landscape layout xml.
Bug: 193602141
Test: atest SettingsUnitTests and manual
Change-Id: I30368835979b360a8f09e16f70adf57064784517
Bug: 152462657
Test: Manual. Enable TalkBack in Settings > Accessibility. Navigate to
Developer options > Wireless debugging > Pairing device with QR code.
Scan a valid QR code, which should change to "Pairing device..." and
screen reader should say "Pairing device".
Change-Id: If467b56f787bda765fce1e5d46f8ab3c6210dc76
TalkBack was picking up the text in the action bar, so if we hide it,
it will read the first body of text it encounters which would be "Scan
QR code. Pair device over Wi-Fi by scanning a QR code."
Bug: 152461605
Test: Manual. Enable TalkBack in Settings > Accessibility > TalkBack.
Navigate to Developer options > Wireless debugging > Pair by QR code.
When QR code scanner fragment opens, it should say "Scan QR code. Pair
device over Wi-Fi by scanning a QR code."
Change-Id: Ia91bf4ea215e6a377335f2b9dcf2acf10afd268e
The preference should be hidden if isAdbWifiQrSupported() is false.
Bug: 150163684
Bug: 149843499
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AdbQrCodePreferenceControllerTest
Change-Id: I3e833440fb1a6f369ac97cec8db04f2b99dd4640
