Add a debug parameter to Welcome to force 1-pane/2-pane

- Now Welcome takes an EXTRA_DEBUG_PANE_MODE to force the
  one-pane/two-pane mode.

Use this to open one-pane.
adb shell am start -a android.intent.action.MAIN \
  -n com.google.android.email/com.android.email.activity.Welcome \
  -e DEBUG_PANE_MODE 1

Use this to open two-pane.
adb shell am start -a android.intent.action.MAIN \
  -n com.google.android.email/com.android.email.activity.Welcome \
  -e DEBUG_PANE_MODE 2

Change-Id: I6e96f80f53f4488152935502c19d3dd8e0788150
1 file changed