--- a/Core/ChunkedBuffer.cpp	Wed May 29 18:12:28 2019 +0200
+++ b/Core/ChunkedBuffer.cpp	Mon Jun 03 10:30:14 2019 +0200
@@ -77,6 +77,19 @@
   }
 
 
+  void ChunkedBuffer::AddChunkDestructive(std::string& chunk)
+  {
+    size_t chunkSize = chunk.size();
+    
+    if (chunkSize > 0)
+    {
+      chunks_.push_back(new std::string);
+      chunks_.back()->swap(chunk);
+      numBytes_ += chunkSize;
+    }
+  }
+
+
   void ChunkedBuffer::Flatten(std::string& result)
   {
     result.resize(numBytes_);

--- a/Core/ChunkedBuffer.h	Wed May 29 18:12:28 2019 +0200
+++ b/Core/ChunkedBuffer.h	Mon Jun 03 10:30:14 2019 +0200
@@ -67,6 +67,9 @@
 
     void AddChunk(const std::string& chunk);
 
+    // The source content will be emptied
+    void AddChunkDestructive(std::string& chunk);
+
     void Flatten(std::string& result);
   };
 }