Fix master build.

Change-Id: Ia362f74d8cd7df76292473c26c112dffe190c599
diff --git a/services/camera/libcameraservice/Camera2Client.cpp b/services/camera/libcameraservice/Camera2Client.cpp
index d468aa6..5a7bb48 100644
--- a/services/camera/libcameraservice/Camera2Client.cpp
+++ b/services/camera/libcameraservice/Camera2Client.cpp
@@ -1057,7 +1057,7 @@
     return OK;
 }
 
-status_t Camera2Client::takePicture(int /*msgType*/) {
+status_t Camera2Client::takePicture(int msgType) {
     ATRACE_CALL();
     Mutex::Autolock icl(mICameraLock);
     status_t res;