Make VirtualAudioDevice device-aware

Create and use the correct device context when creating
VirtualAudioDevice. This helps ensure audio policies are registered with
the correct context to facilitate device-aware permissions.

Bug: 291737188
Test: n/a
Change-Id: I19046277d8cc439beafa07e55e0f2ed88b86d157

AconfigFlags.bp

@@ -23,6 +23,7 @@ aconfig_srcjars = [
     ":android.chre.flags-aconfig-java{.generated_srcjars}",
     ":android.companion.flags-aconfig-java{.generated_srcjars}",
     ":android.companion.virtual.flags-aconfig-java{.generated_srcjars}",
+    ":android.companion.virtualdevice.flags-aconfig-java{.generated_srcjars}",
     ":android.content.flags-aconfig-java{.generated_srcjars}",
     ":android.content.pm.flags-aconfig-java{.generated_srcjars}",
     ":android.content.res.flags-aconfig-java{.generated_srcjars}",

core/java/android/companion/virtual/VirtualDeviceInternal.java

@@ -26,6 +26,7 @@ import android.companion.virtual.audio.VirtualAudioDevice;
 import android.companion.virtual.camera.VirtualCamera;
 import android.companion.virtual.camera.VirtualCameraConfig;
 import android.companion.virtual.sensor.VirtualSensor;
+import android.companion.virtualdevice.flags.Flags;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -351,7 +352,11 @@ public class VirtualDeviceInternal {
             @Nullable Executor executor,
             @Nullable VirtualAudioDevice.AudioConfigurationChangeCallback callback) {
         if (mVirtualAudioDevice == null) {
-            mVirtualAudioDevice = new VirtualAudioDevice(mContext, mVirtualDevice, display,
+            Context context = mContext;
+            if (Flags.deviceAwareRecordAudioPermission()) {
+                context = mContext.createDeviceContext(getDeviceId());
+            }
+            mVirtualAudioDevice = new VirtualAudioDevice(context, mVirtualDevice, display,
                     executor, callback, () -> mVirtualAudioDevice = null);
         }
         return mVirtualAudioDevice;

core/java/android/companion/virtual/flags/flags.aconfig

@@ -21,3 +21,11 @@ flag {
      description: "Enable discovery of the Virtual Camera HAL without a VINTF entry"
      bug: "305170199"
 }
+
+flag {
+     namespace: "virtual_devices"
+     name: "device_aware_record_audio_permission"
+     description: "Enable device-aware RECORD_AUDIO permission"
+     bug: "291737188"
+     is_fixed_read_only: true
+}