Camera: Disallow dumping clients directly

Camera service dumps should only be initiated through
ICameraService::dump.

Bug: 26265403
Change-Id: If3ca4718ed74bf33ad8a416192689203029e2803
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 1cdf8dc..ab7057f 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -480,6 +480,10 @@
 }
 
 status_t CameraDeviceClient::dump(int fd, const Vector<String16>& args) {
+    return BasicClient::dump(fd, args);
+}
+
+status_t CameraDeviceClient::dumpClient(int fd, const Vector<String16>& args) {
     String8 result;
     result.appendFormat("CameraDeviceClient[%d] (%p) PID: %d, dump:\n",
             mCameraId,
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index b9c16aa..99df386 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -109,6 +109,8 @@
 
     virtual status_t      dump(int fd, const Vector<String16>& args);
 
+    virtual status_t      dumpClient(int fd, const Vector<String16>& args);
+
     /**
      * Device listener interface
      */