use CXX compiler for c++ files

native_client_sdk/src/examples/mouselock/mouselock.h

Index: native_client_sdk/src/examples/mouselock/mouselock.h
diff --git a/native_client_sdk/src/examples/mouselock/mouselock.h b/native_client_sdk/src/examples/mouselock/mouselock.h
index 101bf96c1c25c28b7eea5d984c7f16447fc8fd10..62f48f2ce6dfb39ca1f6c97bcf36c9af57bc1e92 100644
--- a/native_client_sdk/src/examples/mouselock/mouselock.h
+++ b/native_client_sdk/src/examples/mouselock/mouselock.h
@@ -19,6 +19,11 @@
 #include "ppapi/cpp/var.h"
 #include "ppapi/utility/completion_callback_factory.h"
 
+#ifdef _MSC_VER
+// Allow 'this' in initializer list
+#pragma warning(disable : 4355)
+#endif
+
 namespace mouselock {
 
 class MouseLockInstance : public pp::Instance, public pp::MouseLock {