third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/any.proto

Index: third_party/protobuf/src/google/protobuf/any.proto
diff --git a/third_party/protobuf/src/google/protobuf/any.proto b/third_party/protobuf/src/google/protobuf/any.proto
index 45db6ede352bb2af940675b63476b15554309951..9bd3f50a4537c107d87b719dbf12ab0d93874b17 100644
--- a/third_party/protobuf/src/google/protobuf/any.proto
+++ b/third_party/protobuf/src/google/protobuf/any.proto
@@ -37,7 +37,6 @@ option go_package = "github.com/golang/protobuf/ptypes/any";
 option java_package = "com.google.protobuf";
 option java_outer_classname = "AnyProto";
 option java_multiple_files = true;
-option java_generate_equals_and_hash = true;
 option objc_class_prefix = "GPB";
 
 // `Any` contains an arbitrary serialized protocol buffer message along with a
@@ -65,6 +64,16 @@ option objc_class_prefix = "GPB";
 //       foo = any.unpack(Foo.class);
 //     }
 //
+//  Example 3: Pack and unpack a message in Python.
+//
+//     foo = Foo(...)
+//     any = Any()
+//     any.Pack(foo)
+//     ...
+//     if any.Is(Foo.DESCRIPTOR):
+//       any.Unpack(foo)
+//       ...
+//
 // The pack methods provided by protobuf library will by default use
 // 'type.googleapis.com/full.type.name' as the type URL and the unpack
 // methods only use the fully qualified type name after the last '/'
@@ -104,10 +113,10 @@ message Any {
   // A URL/resource name whose content describes the type of the
   // serialized protocol buffer message.
   //
-  // For URLs which use the schema `http`, `https`, or no schema, the
+  // For URLs which use the scheme `http`, `https`, or no scheme, the
   // following restrictions and interpretations apply:
   //
-  // * If no schema is provided, `https` is assumed.
+  // * If no scheme is provided, `https` is assumed.
   // * The last segment of the URL's path must represent the fully
   //   qualified name of the type (as in `path/google.protobuf.Duration`).
   //   The name should be in a canonical form (e.g., leading "." is
@@ -120,7 +129,7 @@ message Any {
   //   on changes to types. (Use versioned type names to manage
   //   breaking changes.)
   //
-  // Schemas other than `http`, `https` (or the empty schema) might be
+  // Schemes other than `http`, `https` (or the empty scheme) might be
   // used with implementation specific semantics.
   //
   string type_url = 1;