[NaCl SDK] Get nacl_mounts_tests building.

native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h

Index: native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h
diff --git a/native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h b/native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h
index 141a788f24b21d08774b35eb186447e6f8e3cfa8..4c11606392be69a0330b8c6b3a17839a0dab8c02 100644
--- a/native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h
+++ b/native_client_sdk/src/libraries/nacl_mounts/kernel_handle.h
@@ -31,7 +31,7 @@ class KernelHandle : public RefObject {
   friend class KernelObject;
   friend class KernelProxy;
   void Acquire() { RefObject::Acquire(); }
-  void Release() { RefObject::Release(); }
+  bool Release() { return RefObject::Release(); }

[noelallen1, 2012/08/09 18:26:57]

I originally had this as bool, then realized I never looked at the return value
of Release.  Do you actually use this value?

[binji, 2012/08/09 19:39:23]

Yes, see my other comment.

   DISALLOW_COPY_AND_ASSIGN(KernelHandle);
 };