Create a new Transaction to apply the edge extensions

mFrameTransaction is not thread safe and should only be used in the animation thread, but here we were accessing this transaction in a binder thread through the TransactionCommittedListenerCallback.

Bug: 228000332

Test: atest CtsWindowManagerDeviceTestCases:ActivityTransitionTests
Change-Id: Ia5c5022ebd1a12f45fecbb80905606dbda85caf9