Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/objectivec/GPBUtilities_PackagePrivate.h

 // 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 167 matching lines @@
   GPBMessageFieldDescription *fieldDesc = field->description_;
   return GPBGetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number);
 }
 GPB_INLINE void GPBSetHasIvarField(GPBMessage *self, GPBFieldDescriptor *field,
                                    BOOL value) {
   GPBMessageFieldDescription *fieldDesc = field->description_;
   GPBSetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number, value);
 }
 
 void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
-                        uint32_t fieldNumberNotToClear);
+                        int32_t oneofHasIndex, uint32_t fieldNumberNotToClear);
 
 //%PDDM-DEFINE GPB_IVAR_SET_DECL(NAME, TYPE)
 //%void GPBSet##NAME##IvarWithFieldInternal(GPBMessage *self,
 //%            NAME$S                     GPBFieldDescriptor *field,
 //%            NAME$S                     TYPE value,
 //%            NAME$S                     GPBFileSyntax syntax);
 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Bool, BOOL)
 // This block of code is generated, do not edit it directly.
 
 void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
@@ skipping 123 matching lines @@
 
 #undef GPB_MESSAGE_SIGNATURE_ENTRY
 
 - (id)getArray;
 - (NSUInteger)getArrayCount;
 - (void)setArray:(NSArray *)array;
 + (id)getClassValue;
 @end
 
 CF_EXTERN_C_END