Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/src/google/protobuf/descriptor.proto

Index: third_party/protobuf/src/google/protobuf/descriptor.proto
diff --git a/third_party/protobuf/src/google/protobuf/descriptor.proto b/third_party/protobuf/src/google/protobuf/descriptor.proto
index 03aba076fc1b3c934690c714ccadee596a5be493..08b155548beb90ed850bd92e882a8896a7f29577 100644
--- a/third_party/protobuf/src/google/protobuf/descriptor.proto
+++ b/third_party/protobuf/src/google/protobuf/descriptor.proto
@@ -40,7 +40,7 @@
 syntax = "proto2";
 
 package google.protobuf;
-option go_package = "github.com/golang/protobuf/protoc-gen-go/descriptor;descriptor";
+option go_package = "descriptor";
 option java_package = "com.google.protobuf";
 option java_outer_classname = "DescriptorProtos";
 option csharp_namespace = "Google.Protobuf.Reflection";
@@ -157,6 +157,7 @@ message FieldDescriptorProto {
     LABEL_OPTIONAL      = 1;
     LABEL_REQUIRED      = 2;
     LABEL_REPEATED      = 3;
+    // TODO(sanjay): Should we add LABEL_MAP?
   };
 
   optional string name = 1;
@@ -201,7 +202,6 @@ message FieldDescriptorProto {
 // Describes a oneof.
 message OneofDescriptorProto {
   optional string name = 1;
-  optional OneofOptions options = 2;
 }
 
 // Describes an enum type.
@@ -304,8 +304,19 @@ message FileOptions {
   // top-level extensions defined in the file.
   optional bool java_multiple_files = 10 [default=false];
 
-  // This option does nothing.
-  optional bool java_generate_equals_and_hash = 20 [deprecated=true];
+  // If set true, then the Java code generator will generate equals() and
+  // hashCode() methods for all messages defined in the .proto file.
+  // This increases generated code size, potentially substantially for large
+  // protos, which may harm a memory-constrained application.
+  // - In the full runtime this is a speed optimization, as the
+  // AbstractMessage base class includes reflection-based implementations of
+  // these methods.
+  // - In the lite runtime, setting this option changes the semantics of
+  // equals() and hashCode() to more closely match those of the full runtime;
+  // the generated methods compute their results based on field values rather
+  // than object identity. (Implementations should not assume that hashcodes
+  // will be consistent across runtimes or versions of the protocol compiler.)
+  optional bool java_generate_equals_and_hash = 20 [default=false];
 
   // If set true, then the Java2 code generator will generate code that
   // throws an exception whenever an attempt is made to assign a non-UTF-8
@@ -366,12 +377,6 @@ message FileOptions {
   // Namespace for generated classes; defaults to the package.
   optional string csharp_namespace = 37;
 
-  // By default Swift generators will take the proto package and CamelCase it
-  // replacing '.' with underscore and use that to prefix the types/symbols
-  // defined. When this options is provided, they will use this value instead
-  // to prefix the types/symbols defined.
-  optional string swift_prefix = 39;
-
   // The parser stores options it doesn't recognize here. See above.
   repeated UninterpretedOption uninterpreted_option = 999;
 
@@ -436,9 +441,6 @@ message MessageOptions {
   // parser.
   optional bool map_entry = 7;
 
-  reserved 8;  // javalite_serializable
-
-
   // The parser stores options it doesn't recognize here. See above.
   repeated UninterpretedOption uninterpreted_option = 999;
 
@@ -467,6 +469,7 @@ message FieldOptions {
   // false will avoid using packed encoding.
   optional bool packed = 2;
 
+
   // The jstype option determines the JavaScript type used for values of the
   // field.  The option is permitted only for 64 bit integral and fixed types
   // (int64, uint64, sint64, fixed64, sfixed64).  By default these types are
@@ -507,7 +510,7 @@ message FieldOptions {
   //
   //
   // Note that implementations may choose not to check required fields within
-  // a lazy sub-message.  That is, calling IsInitialized() on the outer message
+  // a lazy sub-message.  That is, calling IsInitialized() on the outher message
   // may return true even if the inner message has missing required fields.
   // This is necessary because otherwise the inner message would have to be
   // parsed in order to perform the check, defeating the purpose of lazy
@@ -533,16 +536,6 @@ message FieldOptions {
 
   // Clients can define custom options in extensions of this message. See above.
   extensions 1000 to max;
-
-  reserved 4;  // removed jtype
-}
-
-message OneofOptions {
-  // The parser stores options it doesn't recognize here. See above.
-  repeated UninterpretedOption uninterpreted_option = 999;
-
-  // Clients can define custom options in extensions of this message. See above.
-  extensions 1000 to max;
 }
 
 message EnumOptions {
@@ -557,7 +550,6 @@ message EnumOptions {
   // is a formalization for deprecating enums.
   optional bool deprecated = 3 [default=false];
 
-
   // The parser stores options it doesn't recognize here. See above.
   repeated UninterpretedOption uninterpreted_option = 999;
 
@@ -612,17 +604,6 @@ message MethodOptions {
   // this is a formalization for deprecating methods.
   optional bool deprecated = 33 [default=false];
 
-  // Is this method side-effect-free (or safe in HTTP parlance), or idempotent,
-  // or neither? HTTP based RPC implementation may choose GET verb for safe
-  // methods, and PUT verb for idempotent methods instead of the default POST.
-  enum IdempotencyLevel {
-    IDEMPOTENCY_UNKNOWN = 0;
-    NO_SIDE_EFFECTS     = 1; // implies idempotent
-    IDEMPOTENT          = 2; // idempotent, but may have side effects
-  }
-  optional IdempotencyLevel idempotency_level =
-      34 [default=IDEMPOTENCY_UNKNOWN];
-
   // The parser stores options it doesn't recognize here. See above.
   repeated UninterpretedOption uninterpreted_option = 999;