Issue 4231 - Fix unstable FilterEngineTest.testSetRemoveFilterChangeCallback

libadblockplus-android/jni/JniCallbacks.h

Index: libadblockplus-android/jni/JniCallbacks.h
diff --git a/libadblockplus-android/jni/JniCallbacks.h b/libadblockplus-android/jni/JniCallbacks.h
index 27269b7cb59419fcc46188a56605d0d60bdc2924..533a0c55c9a836cbbc4f4ffa825012c6bf94c4c8 100644
--- a/libadblockplus-android/jni/JniCallbacks.h
+++ b/libadblockplus-android/jni/JniCallbacks.h
@@ -84,6 +84,18 @@ public:
   void operator()(AdblockPlus::LogSystem::LogLevel logLevel, const std::string& message, const std::string& source);
 };
 
+class JniFileSystemCallback : public JniCallbackBase, public AdblockPlus::FileSystem
+{
+public:
+  JniFileSystemCallback(JNIEnv* env, jobject callbackObject);
+  std::shared_ptr<std::istream> Read(const std::string& path) const;
+  void Write(const std::string& path, std::shared_ptr<std::istream> data);
+  void Move(const std::string& fromPath, const std::string& toPath);
+  void Remove(const std::string& path);
+  AdblockPlus::FileSystem::StatResult Stat(const std::string& path) const;
+  std::string Resolve(const std::string& path) const;
+};
+
 class JniShowNotificationCallback : public JniCallbackBase
 {
 public: