Exclude exe files while unzipping CRXes

third_party/zlib/google/zip.h

Index: third_party/zlib/google/zip.h
diff --git a/third_party/zlib/google/zip.h b/third_party/zlib/google/zip.h
index 3d20e595e1af5a2d36f8fa249c52729f4dbd98af..61080c5a4f75aa0beaff415438bff14c82e0c465 100644
--- a/third_party/zlib/google/zip.h
+++ b/third_party/zlib/google/zip.h
@@ -41,6 +41,14 @@ bool ZipFiles(const base::FilePath& src_dir,
 #endif  // defined(OS_POSIX)
 
 // Unzip the contents of zip_file into dest_dir.
+// For each file in zip_file, include it only if the callback |filter_cb|
+// returns true. Otherwise omit it.
+typedef base::Callback<bool(const base::FilePath&)> FilterCallback;
+bool UnzipWithFilterCallback(const base::FilePath& zip_file,
+                             const base::FilePath& dest_dir,
+                             const FilterCallback& filter_cb);
+
+// Unzip the contents of zip_file into dest_dir.
 bool Unzip(const base::FilePath& zip_file, const base::FilePath& dest_dir);
 
 }  // namespace zip