DO NOT MERGE Increase the size of the test freeform activity. Also clean up unused variable TEST_TASK_SIZE_2. Change-Id: I37ec83e4ce5cff7eebd6f01efab37bc78b7c277b Merged-In: I32aea1d31db36af9d07c8e1470c37db1ddce67e5 Fix: 349402977 Test: FreeformWindowingModeTests Flag: TEST_ONLY