Fix: Correct transaction IDs for connectionless Cast API.

[eelcowijbrands]

🔧 Fix: Transaction ID Mismatch in Connectionless Cast API

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Problem

The AIDL transaction numbers for the connectionless Cast API were off by one, causing the handshake to fail silently. Connectionless clients (Netflix, Prime Video, Disney+) would bind the service but never receive onConnectedWithResult(), causing the session to stall indefinitely.

Root Cause

The transaction IDs in the AIDL files did not match the expected values from the Google Cast SDK:

Method	In Code	Expected	Status
connect()	16	17	❌ Fixed
setListener()	17	18	❌ Fixed
unregisterListener()	18	19	❌ Fixed
onConnectedWithResult()	13	14	❌ Fixed

Solution

Updated the transaction IDs in:

• ICastDeviceController.aidl
• ICastDeviceControllerListener.aidl

Testing

This fix should be tested with:

• Netflix
• Amazon Prime Video
• Disney+
• YouTube

Verify that:

1. The Cast button discovers devices ✅
2. Selecting a device starts a session ✅
3. The session connects successfully (no more hanging) ✅
4. Media plays on the Chromecast ✅

Related PRs

• Cast: Start a session when a Cast route is selected #3567 (Start a session when a Cast route is selected)
• Cast: Implement connectionless (Cast.API_CXLESS) device controller #3570 (Implement connectionless device controller)