Add corner resize window with multiple windows opened scenario.

Test: atest desktopmode-jank-suite -- --enable-module-dynamic-download
--test-arg
com.android.tradefed.testtype.AndroidJUnitTest:class:android.platform.test.scenario.sysui.desktopmode.ResizeAppCornerMultiWindowMicrobenchmark
Flag: NONE new microbenchmark test
Change-Id: I43d20596eb019174dfb519181de79ab15ed41e7b

Change-Id: I1af70a3f622c3d359883af0f9207931a42a0f785