When android:ui process receives callback result of AppPredictionService...

When android:ui process receives callback result of AppPredictionService sortTargets, directly handles result instead of sending to Handler which takes extra time to dispatch messages.

Bug: 155551642
Test: atest CtsSharesheetTestCases:android.sharesheet.cts.CtsSharesheetDeviceTest
Test: manually test on the device
Change-Id: I7a28dbebfb4bf9cdf1fe27dd224c72ef9b44f2fe