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

third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h

Index: third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h
diff --git a/third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h b/third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h
index bace614d510dcf4c07441dc1d018f44314cbcf9f..f33db0175f62bce9a1d3bcb677c4ed7c1ddec599 100644
--- a/third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h
+++ b/third_party/protobuf/objectivec/google/protobuf/Empty.pbobjc.h
@@ -3,38 +3,43 @@
 
 #import "GPBProtocolBuffers.h"
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30000
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
 // @@protoc_insertion_point(imports)
 
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 CF_EXTERN_C_BEGIN
 
 NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - GPBEmptyRoot
 
+/// Exposes the extension registry for this file.
+///
+/// The base class provides:
+/// @code
+///   + (GPBExtensionRegistry *)extensionRegistry;
+/// @endcode
+/// which is a @c GPBExtensionRegistry that includes all the extensions defined by
+/// this file and all files that it depends on.
 @interface GPBEmptyRoot : GPBRootObject
-
-// The base class provides:
-//   + (GPBExtensionRegistry *)extensionRegistry;
-// which is an GPBExtensionRegistry that includes all the extensions defined by
-// this file and all files that it depends on.
-
 @end
 
 #pragma mark - GPBEmpty
 
-// A generic empty message that you can re-use to avoid defining duplicated
-// empty messages in your APIs. A typical example is to use it as the request
-// or the response type of an API method. For instance:
-//
-//     service Foo {
-//       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
-//     }
-//
-// The JSON representation for `Empty` is empty JSON object `{}`.
+/// A generic empty message that you can re-use to avoid defining duplicated
+/// empty messages in your APIs. A typical example is to use it as the request
+/// or the response type of an API method. For instance:
+///
+///     service Foo {
+///       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
+///     }
+///
+/// The JSON representation for `Empty` is empty JSON object `{}`.
 @interface GPBEmpty : GPBMessage
 
 @end
@@ -43,4 +48,6 @@ NS_ASSUME_NONNULL_END
 
 CF_EXTERN_C_END
 
+#pragma clang diagnostic pop
+
 // @@protoc_insertion_point(global_scope)