device/bluetooth: Add checks to BluetoothAdapter overrides.

device/bluetooth/bluetooth_audio_sink_chromeos.cc

Index: device/bluetooth/bluetooth_audio_sink_chromeos.cc
diff --git a/device/bluetooth/bluetooth_audio_sink_chromeos.cc b/device/bluetooth/bluetooth_audio_sink_chromeos.cc
index dcd751bcd4cd37ac90830862ba35639b66ccd53a..82b87f766cd605cf52e231ecb53f9a3fa5dc79b9 100644
--- a/device/bluetooth/bluetooth_audio_sink_chromeos.cc
+++ b/device/bluetooth/bluetooth_audio_sink_chromeos.cc
@@ -227,6 +227,9 @@ void BluetoothAudioSinkChromeOS::AdapterPresentChanged(
     device::BluetoothAdapter* adapter, bool present) {
   VLOG(1) << "AdapterPresentChanged: " << present;
 
+  if (adapter != adapter_.get())
+    return;
+
   if (adapter->IsPresent()) {
     StateChanged(BluetoothAudioSink::STATE_DISCONNECTED);
   } else {
@@ -239,6 +242,9 @@ void BluetoothAudioSinkChromeOS::AdapterPoweredChanged(
     device::BluetoothAdapter* adapter, bool powered) {
   VLOG(1) << "AdapterPoweredChanged: " << powered;
 
+  if (adapter != adapter_.get())
+    return;
+
   // Regardless of the new powered state, |state_| goes to STATE_DISCONNECTED.
   // If false, the transport is closed, but the endpoint is still valid for use.
   // If true, the previous transport has been torn down, so the |state_| has to