Pull new version of protobuf sources.

third_party/protobuf/objectivec/GPBWellKnownTypes.h

+// 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
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#import <Foundation/Foundation.h>
+
+#import "google/protobuf/Any.pbobjc.h"
+#import "google/protobuf/Duration.pbobjc.h"
+#import "google/protobuf/Timestamp.pbobjc.h"
+
+
+NS_ASSUME_NONNULL_BEGIN
+
+// Extension to GPBTimestamp to work with standard Foundation time/date types.
+@interface GPBTimestamp (GBPWellKnownTypes)
+@property(nonatomic, readwrite, strong) NSDate *date;
+@property(nonatomic, readwrite) NSTimeInterval timeIntervalSince1970;
+- (instancetype)initWithDate:(NSDate *)date;
+- (instancetype)initWithTimeIntervalSince1970:(NSTimeInterval)timeIntervalSince1970;
+@end
+
+// Extension to GPBDuration to work with standard Foundation time type.
+@interface GPBDuration (GBPWellKnownTypes)
+@property(nonatomic, readwrite) NSTimeInterval timeIntervalSince1970;
+- (instancetype)initWithTimeIntervalSince1970:(NSTimeInterval)timeIntervalSince1970;
+@end
+
+// Extension to GPBAny to support packing and unpacking for arbitrary messages.
+@interface GPBAny (GPBWellKnownTypes)
+// Initialize GPBAny instance with the given message. e.g., for google.protobuf.foo, type
+// url will be "type.googleapis.com/google.protobuf.foo" and value will be serialized foo.
+- (instancetype)initWithMessage:(GPBMessage*)message;
+// Serialize the given message to the value in GPBAny. Type url will also be updated.
+- (void)setMessage:(GPBMessage*)message;
+// Parse the value in GPBAny to the given message. If messageClass message doesn't match the
+// type url in GPBAny, nil is returned.
+- (GPBMessage*)messageOfClass:(Class)messageClass;
+// True if the given type matches the type url in GPBAny.
+- (BOOL)wrapsMessageOfClass:(Class)messageClass;
+@end
+
+// Common prefix of type url in GPBAny, which is @"type.googleapis.com/". All valid
+// type urls in any should start with this prefix.
+extern NSString *const GPBTypeGoogleApisComPrefix;
+
+NS_ASSUME_NONNULL_END