shill: Move DBus bindings to subdirectory dbus_bindings.

This provides a separate filename namespace for the bindings, avoids some naming
confusion and reduces the clutter in the main directory.

BUG=chromium-os:17824
TEST=unit tests, ran on device

Change-Id: I5b7f7d87f6c23a51c490de0ab0d0f1fdea85792b
Reviewed-on: http://gerrit.chromium.org/gerrit/4325
Tested-by: Darin Petkov <petkov@chromium.org>
Reviewed-by: Chris Masone <cmasone@chromium.org>
diff --git a/modem_manager_proxy.h b/modem_manager_proxy.h
index ff201ad..988f19e 100644
--- a/modem_manager_proxy.h
+++ b/modem_manager_proxy.h
@@ -7,7 +7,7 @@
 
 #include <base/basictypes.h>
 
-#include "shill/mm.h"
+#include "shill/dbus_bindings/modem_manager.h"
 #include "shill/modem_manager_proxy_interface.h"
 
 namespace shill {