Minor fixes to match VTS requirements:

* Add missing camera characteristic metadata entries required by VTS
* Do not fail for VIDEO_SNAPSHOT template in constructDefaultRequestSettings.

Bug: 301023410
Test: atest VtsAidlHalCameraProvider_TargetTest (with manually added
virutal camera provider)
Test: atest virtual_camera_tests

Change-Id: I86fee06d67b16f8155b47d0deb4c217c8f8e5698
diff --git a/services/camera/virtualcamera/util/MetadataBuilder.h b/services/camera/virtualcamera/util/MetadataBuilder.h
index 25c931c..2124398 100644
--- a/services/camera/virtualcamera/util/MetadataBuilder.h
+++ b/services/camera/virtualcamera/util/MetadataBuilder.h
@@ -99,6 +99,11 @@
   MetadataBuilder& setAvailableOutputStreamConfigurations(
       const std::vector<StreamConfiguration>& streamConfigurations);
 
+  // See ANDROID_CONTROL_AVAILABLE_MODES in CameraMetadataTag.aidl.
+  MetadataBuilder& setControlAvailableModes(
+      const std::vector<camera_metadata_enum_android_control_mode_t>&
+          availableModes);
+
   // See ANDROID_CONTROL_AE_COMPENSATION_RANGE in CameraMetadataTag.aidl.
   MetadataBuilder& setControlAeCompensationRange(int32_t min, int32_t max);