Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/java/core/src/main/java/com/google/protobuf/MessageReflection.java

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 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
 // notice, this list of conditions and the following disclaimer.
@@ skipping 346 matching lines @@
      * prototype directly.
      */
     MergeTarget newMergeTargetForField(
         Descriptors.FieldDescriptor descriptor,
         Message defaultInstance);
 
     /**
      * Finishes the merge and returns the underlying object.
      */
     Object finish();
+    
   }
 
   static class BuilderAdapter implements MergeTarget {
 
     private final Message.Builder builder;
 
     @Override
     public Descriptors.Descriptor getDescriptorForType() {
       return builder.getDescriptorForType();
     }
@@ skipping 164 matching lines @@
           && builder instanceof GeneratedMessage.Builder) {
         return WireFormat.Utf8Validation.LAZY;
       }
       return WireFormat.Utf8Validation.LOOSE;
     }
 
     @Override
     public Object finish() {
       return builder.buildPartial();
     }
+    
   }
 
 
   static class ExtensionAdapter implements MergeTarget {
 
     private final FieldSet<Descriptors.FieldDescriptor> extensions;
 
     ExtensionAdapter(FieldSet<Descriptors.FieldDescriptor> extensions) {
       this.extensions = extensions;
     }
@@ skipping 143 matching lines @@
       }
       // TODO(liujisi): support lazy strings for ExtesnsionSet.
       return WireFormat.Utf8Validation.LOOSE;
     }
 
     @Override
     public Object finish() {
       throw new UnsupportedOperationException(
           "finish() called on FieldSet object");
     }
+    
   }
 
   /**
    * Parses a single field into MergeTarget. The target can be Message.Builder,
    * FieldSet or MutableMessage.
    *
    * Package-private because it is used by GeneratedMessage.ExtendableMessage.
    *
    * @param tag The tag, which should have already been read.
    * @return {@code true} unless the tag is an end-group tag.
@@ skipping 257 matching lines @@
       CodedInputStream input,
       ExtensionRegistry.ExtensionInfo extension,
       ExtensionRegistryLite extensionRegistry,
       MergeTarget target) throws IOException {
     Descriptors.FieldDescriptor field = extension.descriptor;
     Object value = target.parseMessage(input, extensionRegistry, field,
                                        extension.defaultInstance);
     target.setField(field, value);
   }
 }