Merge remote-tracking branch 'origin/topic/jsiwek/http-file-id-caching'

* origin/topic/jsiwek/http-file-id-caching:
  Revert use of HTTP file ID caching for gaps range request content.
  Extend file analysis API to allow file ID caching, adapt HTTP to use it.

BIT-1125 #merged

src/analyzer/protocol/http/HTTP.h

@@ -64,6 +64,7 @@ protected:
 	uint64_t offset;
 	int64_t instance_length; // total length indicated by content-range
 	bool send_size; // whether to send size indication to FAF
+	std::string precomputed_file_id;
 
 	MIME_Entity* NewChildEntity() { return new HTTP_Entity(http_message, this, 1); }