Added cleaned up structs and classes to proper header files.

source/engine/framework/streamfilecache.h

@@ -0,0 +1,16 @@
+#pragma once
+
+// Reconstructed C++ declarations from IDA Local Types and PDB/DIA metadata.
+// Original PDB header: w:\tech5\engine\framework\streamfilecache.h
+// Recovered logical types: 1
+// Signatures retain Xbox 360 ABI evidence and may still require manual review.
+
+
+// IDA Local Type ordinal 12275; PDB kind: class.
+class __declspec(align(4)) idStreamFileCache
+{
+public:
+  idSysMutex interfaceMutex;
+  idStreamControlThread *controlThread;
+  volatile bool cancelToTerminate;
+};