Pickle (serialize and deserialize) MultiThreadedCertVerifier's |cache_|

net/base/hash_value.h

Index: net/base/hash_value.h
diff --git a/net/base/hash_value.h b/net/base/hash_value.h
index a0e1d84d400f5df169ae210095ff4aedcf39b0b7..c6a10c66e5fcdf6af1fdd6330380b7d0949f6f50 100644
--- a/net/base/hash_value.h
+++ b/net/base/hash_value.h
@@ -12,6 +12,7 @@
 #include <string>
 #include <vector>
 
+#include "base/pickle.h"
 #include "base/strings/string_piece.h"
 #include "build/build_config.h"
 #include "net/base/net_export.h"
@@ -21,6 +22,15 @@ namespace net {
 struct NET_EXPORT SHA1HashValue {
   bool Equals(const SHA1HashValue& other) const;
 
+  // Appends a representation of this object to the given pickle.
+  bool Persist(base::Pickle* pickle) const;
+
+  // Create an SHA1HashValue from the representation stored in the given pickle.
+  // The data for this object is found relative to the given pickle_iter, which
+  // should be passed to the pickle's various Read* methods.
+  // Returns false on failure.
+  static bool CreateFromPickle(base::PickleIterator* iter, SHA1HashValue* hash);
+
   unsigned char data[20];
 };