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

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

Index: third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
diff --git a/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h b/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
index 8480db1d77edf7b80ccd84abc8236134e4d9ff90..8775348e953e3e62b116a027f182c3dff85bda26 100644
--- a/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
+++ b/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
@@ -3,25 +3,30 @@
 
 #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 - GPBSourceContextRoot
 
+/// 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 GPBSourceContextRoot : 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 - GPBSourceContext
@@ -30,12 +35,12 @@ typedef GPB_ENUM(GPBSourceContext_FieldNumber) {
   GPBSourceContext_FieldNumber_FileName = 1,
 };
 
-// `SourceContext` represents information about the source of a
-// protobuf element, like the file in which it is defined.
+/// `SourceContext` represents information about the source of a
+/// protobuf element, like the file in which it is defined.
 @interface GPBSourceContext : GPBMessage
 
-// The path-qualified name of the .proto file that contained the associated
-// protobuf element.  For example: `"google/protobuf/source.proto"`.
+/// The path-qualified name of the .proto file that contained the associated
+/// protobuf element.  For example: `"google/protobuf/source.proto"`.
 @property(nonatomic, readwrite, copy, null_resettable) NSString *fileName;
 
 @end
@@ -44,4 +49,6 @@ NS_ASSUME_NONNULL_END
 
 CF_EXTERN_C_END
 
+#pragma clang diagnostic pop
+
 // @@protoc_insertion_point(global_scope)