Allow setting split screen windowing mode without showing recents.

- By default, don't show recents when setting to split-screen primary mode
  unless setTaskWindowingModeSplitScreenPrimary() is called directly.

Bug: 70294936
Test: atest CtsActivityManagerDeviceTestCases:ActivityManagerSplitScreenTests
Change-Id: I3be917dd95a219d97063ad869f55ebe7b19322b7
1 file changed