Wire up check JNI force copy mode.

Increase check JNI checks.
Break apart jni_internal.h in to jni_env_ext.h and java_vm_ext.h.
Fix the abuse of ScopedObjectAccess/annotalysis by ScopedCheck in the case
of VM routines.
Make class loader override and shared library class loader JNI global
references rather than mirror pointers.
Clean-ups to native bridge.

Change-Id: If7c6110b5aade7a402bfb67534af86a7b2cdeb55
diff --git a/runtime/reflection.h b/runtime/reflection.h
index 2c54c06..61370c6 100644
--- a/runtime/reflection.h
+++ b/runtime/reflection.h
@@ -17,6 +17,7 @@
 #ifndef ART_RUNTIME_REFLECTION_H_
 #define ART_RUNTIME_REFLECTION_H_
 
+#include "base/mutex.h"
 #include "jni.h"
 #include "primitive.h"