third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/csharp/src/Google.Protobuf/JsonParser.cs

 #region Copyright notice and license
 // Protocol Buffers - Google's data interchange format
 // Copyright 2015 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
@@ skipping 68 matching lines @@
             { Struct.Descriptor.FullName, (parser, message, tokenizer) => parser.MergeStruct(message, tokenizer) },
             { Any.Descriptor.FullName, (parser, message, tokenizer) => parser.MergeAny(message, tokenizer) },
             { FieldMask.Descriptor.FullName, (parser, message, tokenizer) => MergeFieldMask(message, tokenizer.Next()) },
             { Int32Value.Descriptor.FullName, MergeWrapperField },
             { Int64Value.Descriptor.FullName, MergeWrapperField },
             { UInt32Value.Descriptor.FullName, MergeWrapperField },
             { UInt64Value.Descriptor.FullName, MergeWrapperField },
             { FloatValue.Descriptor.FullName, MergeWrapperField },
             { DoubleValue.Descriptor.FullName, MergeWrapperField },
             { BytesValue.Descriptor.FullName, MergeWrapperField },
-            { StringValue.Descriptor.FullName, MergeWrapperField }
+            { StringValue.Descriptor.FullName, MergeWrapperField },
+            { BoolValue.Descriptor.FullName, MergeWrapperField }
         };
 
         // Convenience method to avoid having to repeat the same code multiple times in the above
         // dictionary initialization.
         private static void MergeWrapperField(JsonParser parser, IMessage message, JsonTokenizer tokenizer)
         {
             parser.MergeField(message, message.Descriptor.Fields[WrappersReflection.WrapperValueFieldNumber], tokenizer);
         }
 
         /// <summary>
@@ skipping 909 matching lines @@
             /// <param name="recursionLimit">The maximum depth of messages to parse</param>
             /// <param name="typeRegistry">The type registry used to parse <see cref="Any"/> messages</param>
             public Settings(int recursionLimit, TypeRegistry typeRegistry)
             {
                 RecursionLimit = recursionLimit;
                 TypeRegistry = ProtoPreconditions.CheckNotNull(typeRegistry, nameof(typeRegistry));
             }
         }
     }
 }