commit 3a301dacab11d8c24253f1d4d2bd00cc0daa719c
Author: Dhruva Krishnamurth <dhruvakm@gmail.com>
Date:   Fri Apr 13 21:47:42 2018 -0700

    Fix build error on darwin

diff --git a/tools/aapt2/filter/Filter.h b/tools/aapt2/filter/Filter.h
index d737dc92e87..f932f9ccc82 100644
--- a/tools/aapt2/filter/Filter.h
+++ b/tools/aapt2/filter/Filter.h
@@ -27,7 +27,7 @@ namespace aapt {
 /** A filter to be applied to a path segment. */
 class IPathFilter {
  public:
-  ~IPathFilter() = default;
+  virtual ~IPathFilter() = default;
 
   /** Returns true if the path should be kept. */
   virtual bool Keep(const std::string& path) = 0;