Implement File constructor.

Source/bindings/v8/custom/V8BlobCustom.cpp

Index: Source/bindings/v8/custom/V8BlobCustom.cpp
diff --git a/Source/bindings/v8/custom/V8BlobCustom.cpp b/Source/bindings/v8/custom/V8BlobCustom.cpp
index d514a4eff6a71eb5d36f0cdd090baecd2215bb7e..3674b16d51a943268a301971558ebe3262a53189 100644
--- a/Source/bindings/v8/custom/V8BlobCustom.cpp
+++ b/Source/bindings/v8/custom/V8BlobCustom.cpp
@@ -50,6 +50,7 @@ void V8Blob::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     }
 
     v8::Local<v8::Value> firstArg = info[0];
+    // FIXME: handle WebIDL sequences, see http://crbug.com/314755
     if (!firstArg->IsArray()) {
         throwTypeError("First argument of the constructor is not of type Array", info.GetIsolate());
         return;
@@ -111,7 +112,7 @@ void V8Blob::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
         }
     }
 
-    RefPtr<Blob> blob = blobBuilder.getBlob(type);
+    RefPtr<Blob> blob = blobBuilder.createBlob(type);
     info.GetReturnValue().Set(toV8(blob.get(), info.Holder(), info.GetIsolate()));
 }