(Camera)FrameProcessor: Refactor to share code with ProFrameProcessor

Change-Id: Ie8cd0df7caf83f9d0134f560ae31ab72f2f7d1fc
diff --git a/services/camera/libcameraservice/Camera2Device.cpp b/services/camera/libcameraservice/Camera2Device.cpp
index 81e58ca..37ba5ae 100644
--- a/services/camera/libcameraservice/Camera2Device.cpp
+++ b/services/camera/libcameraservice/Camera2Device.cpp
@@ -47,6 +47,10 @@
     disconnect();
 }
 
+int Camera2Device::getId() const {
+    return mId;
+}
+
 status_t Camera2Device::initialize(camera_module_t *module)
 {
     ATRACE_CALL();