Revert of Mojo: add javascript bindings for request/response

mojo/public/bindings/js/codec.js

Index: mojo/public/bindings/js/codec.js
diff --git a/mojo/public/bindings/js/codec.js b/mojo/public/bindings/js/codec.js
index 9827b36b1822f6f6783a9857b2b5d5fafbc7dbd1..52357f43a70a3da8caaae09a37735bde803fb9d0 100644
--- a/mojo/public/bindings/js/codec.js
+++ b/mojo/public/bindings/js/codec.js
@@ -84,7 +84,6 @@
   var kArrayHeaderSize = 8;
   var kStructHeaderSize = 8;
   var kMessageHeaderSize = 16;
-  var kMessageWithRequestIDHeaderSize = 24;
 
   // Decoder ------------------------------------------------------------------
 
@@ -288,23 +287,10 @@
 
   // Message ------------------------------------------------------------------
 
-  var kMessageExpectsResponse = 1 << 0;
-  var kMessageIsResponse      = 1 << 1;
-
   function Message(memory, handles) {
     this.memory = memory;
     this.handles = handles;
   }
-
-  Message.prototype.setRequestID = function(requestID) {
-    // TODO(darin): Verify that space was reserved for this field!
-    store64(this.memory, 4 + 4 + 4 + 4, requestID);
-  };
-
-  Message.prototype.getFlags = function() {
-    // Skip over num_bytes, num_fields, and message_name.
-    return load32(this.memory, 4 + 4 + 4);
-  };
 
   // MessageBuilder -----------------------------------------------------------
 
@@ -324,7 +310,7 @@
   MessageBuilder.prototype.createEncoder = function(size) {
     var pointer = this.buffer.alloc(size);
     return new Encoder(this.buffer, this.handles, pointer);
-  };
+  }
 
   MessageBuilder.prototype.encodeStruct = function(cls, val) {
     cls.encode(this.createEncoder(cls.encodedSize), val);
@@ -341,40 +327,16 @@
     return message;
   };
 
-  // MessageWithRequestIDBuilder -----------------------------------------------
-
-  function MessageWithRequestIDBuilder(messageName, payloadSize, flags,
-                                       requestID) {
-    // Currently, we don't compute the payload size correctly ahead of time.
-    // Instead, we resize the buffer at the end.
-    var numberOfBytes = kMessageWithRequestIDHeaderSize + payloadSize;
-    this.buffer = new Buffer(numberOfBytes);
-    this.handles = [];
-    var encoder = this.createEncoder(kMessageWithRequestIDHeaderSize);
-    encoder.write32(kMessageWithRequestIDHeaderSize);
-    encoder.write32(3);  // num_fields.
-    encoder.write32(messageName);
-    encoder.write32(flags);
-    encoder.write64(requestID);
-  }
-
-  MessageWithRequestIDBuilder.prototype =
-      Object.create(MessageBuilder.prototype);
-  MessageWithRequestIDBuilder.prototype.constructor =
-      MessageWithRequestIDBuilder;
-
   // MessageReader ------------------------------------------------------------
 
   function MessageReader(message) {
     this.decoder = new Decoder(message.memory, message.handles, 0);
     var messageHeaderSize = this.decoder.read32();
     this.payloadSize = message.memory.length - messageHeaderSize;
-    var numFields = this.decoder.read32();
+    var numberOfFields = this.decoder.read32();
+    // TODO: better handling of messages of different size.
     this.messageName = this.decoder.read32();
-    this.flags = this.decoder.read32();
-    if (numFields >= 3)
-      this.requestID = this.decoder.read64();
-    this.decoder.skip(messageHeaderSize - this.decoder.next);
+    var flags = this.decoder.read32();
   }
 
   MessageReader.prototype.decodeStruct = function(cls) {
@@ -487,13 +449,10 @@
   exports.align = align;
   exports.Message = Message;
   exports.MessageBuilder = MessageBuilder;
-  exports.MessageWithRequestIDBuilder = MessageWithRequestIDBuilder;
   exports.MessageReader = MessageReader;
   exports.kArrayHeaderSize = kArrayHeaderSize;
   exports.kStructHeaderSize = kStructHeaderSize;
   exports.kMessageHeaderSize = kMessageHeaderSize;
-  exports.kMessageExpectsResponse = kMessageExpectsResponse;
-  exports.kMessageIsResponse = kMessageIsResponse;
   exports.Uint8 = Uint8;
   exports.Uint16 = Uint16;
   exports.Uint32 = Uint32;