Fix 2083478: Camera needs an auto-focus cancel API

Change-Id: I13bda991b32aee47e82b5cf9d43b3021c416a9a2
diff --git a/camera/libcameraservice/CameraHardwareStub.h b/camera/libcameraservice/CameraHardwareStub.h
index 000906a..f957fa8 100644
--- a/camera/libcameraservice/CameraHardwareStub.h
+++ b/camera/libcameraservice/CameraHardwareStub.h
@@ -51,6 +51,7 @@
     virtual void        releaseRecordingFrame(const sp<IMemory>& mem);
 
     virtual status_t    autoFocus();
+    virtual status_t    cancelAutoFocus();
     virtual status_t    takePicture();
     virtual status_t    cancelPicture();
     virtual status_t    dump(int fd, const Vector<String16>& args) const;