Move file_path.h to base/files.

TBR=sky

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@184344 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/files/file_path_watcher.h b/base/files/file_path_watcher.h
index b0d55a29..896601c8 100644
--- a/base/files/file_path_watcher.h
+++ b/base/files/file_path_watcher.h
@@ -10,7 +10,7 @@
 #include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/callback.h"
-#include "base/file_path.h"
+#include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop_proxy.h"