More informative error messages for non-Transferables.

Source/bindings/v8/custom/V8WorkerCustom.cpp

Index: Source/bindings/v8/custom/V8WorkerCustom.cpp
diff --git a/Source/bindings/v8/custom/V8WorkerCustom.cpp b/Source/bindings/v8/custom/V8WorkerCustom.cpp
index 01bcdd8dc9bb0c5fe510597043eb5807ab42393d..dd5bfd94dfe2a50a4644d30b47f2769765aa2db5 100644
--- a/Source/bindings/v8/custom/V8WorkerCustom.cpp
+++ b/Source/bindings/v8/custom/V8WorkerCustom.cpp
@@ -31,6 +31,7 @@
 #include "config.h"
 #include "V8Worker.h"
 
+#include "bindings/v8/ExceptionMessages.h"
 #include "bindings/v8/ExceptionState.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "bindings/v8/V8Binding.h"
@@ -47,8 +48,15 @@ void V8Worker::postMessageMethodCustom(const v8::FunctionCallbackInfo<v8::Value>
     MessagePortArray ports;
     ArrayBufferArray arrayBuffers;
     if (args.Length() > 1) {
-        if (!extractTransferables(args[1], ports, arrayBuffers, args.GetIsolate()))
+        bool notASequence = false;
+        if (!extractTransferables(
+            args[1], ports, arrayBuffers, notASequence, args.GetIsolate())) {

[Mike West, 2013/10/22 06:50:40]

Nit: line breaks.

+            if (notASequence) {
+                throwTypeError(ExceptionMessages::failedToExecute(

[Mike West, 2013/10/22 06:50:40]

Nit: line breaks.

+                    "postMessage", "Worker", ExceptionMessages::notASequenceType("Second")), args.GetIsolate());
+            }
             return;
+        }
     }
     bool didThrow = false;
     RefPtr<SerializedScriptValue> message =