Sync MDP: implement MemoryDumpProvider

components/sync/protocol/proto_value_conversions.cc

Index: components/sync/protocol/proto_value_conversions.cc
diff --git a/components/sync/protocol/proto_value_conversions.cc b/components/sync/protocol/proto_value_conversions.cc
index 63850c9265313d6951836e3f0f131e76e930fa48..149b0deb2a10be1b03e1b2c5a82af7678d950c77 100644
--- a/components/sync/protocol/proto_value_conversions.cc
+++ b/components/sync/protocol/proto_value_conversions.cc
@@ -85,6 +85,20 @@ class ToValueVisitor {
     }
   }
 
+  // Customized
+  template <class P>
+  void Visit(P& proto, const char* field_name,
+             const sync_pb::EnhancedBookmarksFlags& field_value) {
+    // Obsolete, don't visit
+  }
+
+  // Customized
+  template <class P>
+  void Visit(P& proto, const char* field_name,
+             const sync_pb::WalletSyncFlags& field_value) {
+    // Obsolete, don't visit
+  }
+
   template <class P>
   static std::unique_ptr<base::DictionaryValue> Visit(
       const P& proto,
@@ -112,7 +126,7 @@ class ToValueVisitor {
   // Customized
   void VisitProto(const sync_pb::PasswordSpecificsData& proto) {
     VisitProtoFields(*this, proto);
-    Visit(proto, "password_value", std::string("<redacted>"));
+    value_->SetString("password_value", "<redacted>");
   }
 
   // Customized