Calculate the max possible preview frame rate for a session and attach
it to CameraSessionStats for consumption by CameraServiceProxy.

Bug: 209669709
Test: Verified values received by the CameraServiceProxy are reasonable.
Change-Id: I865ebda1cb6cbbb5769ace85a0feef8fbd84e554
diff --git a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
index 10fa33f..9303fd2 100644
--- a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
@@ -287,7 +287,7 @@
     }
 }
 
-status_t CameraOfflineSessionClient::notifyActive() {
+status_t CameraOfflineSessionClient::notifyActive(float maxPreviewFps __unused) {
     return startCameraStreamingOps();
 }