Merge mContentCaptureSession and mCachedContentCaptureSession.

Fixes: 124308646
Test: atest android.contentcaptureservice.cts.LoginActivityTest#testContentCaptureSessionCache
Test: atest CtsContentCaptureServiceTestCases
Change-Id: I3c32e14c4022ec68195470945775ab06ba72ec96
1 file changed