PNaCl bug with RequestFilteringInputEvents

filtering.cpp

#include "ppapi/cpp/input_event.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/var.h"

struct HelloTutorialInstance : pp::Instance {
  HelloTutorialInstance(PP_Instance instance) : pp::Instance(instance) {
    RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_MOUSE);
  }

  virtual bool HandleInputEvent(const pp::InputEvent &event) {
    switch (event.GetType()) {
    case PP_INPUTEVENT_TYPE_MOUSEDOWN:
      if (pp::MouseInputEvent(event).GetPosition().x() < 50) {
        PostMessage("YUP");
        return true;
      }
      PostMessage("NOPE");
      return false;

    default:
      return false;
    }
  }
};

struct HelloTutorialModule : pp::Module {
  HelloTutorialModule() : pp::Module() {}

  virtual pp::Instance *CreateInstance(PP_Instance instance) {
    return new HelloTutorialInstance(instance);
  }
};

namespace pp {
  Module *CreateModule() {
    return new HelloTutorialModule();
  }
}

filtering.html

<h2>PNaCl Event Filtering Demo</h2>
<p>
  This tests the RequestFilteringInputEvents() method from the Pepper C++ API.
  According to the <a href="https://google-developers.appspot.com/native-client/dev/peppercpp/classpp_1_1_instance">pp::Instance Class Reference</a>, returning true from HandleInputEvent() will prevent the event from bubbling up to enclosing DOM elements.
  This is broken in Chrome 33.0.1722.0 canary (the events will always bubble regardless).
</p>
<div id="listener">
  <div id="debug">Loading...</div>
  <div id="bubble">Click on left half to prevent bubbling, right half to allow bubbling</div>
  <script>

    listener.addEventListener('load', function() { debug.textContent = 'Success'; }, true);
    listener.addEventListener('error', function() { debug.textContent = 'Error'; }, true);
    listener.addEventListener('message', function(e) { debug.textContent = 'Message from C++: ' + e.data; }, true);
    listener.addEventListener('mousedown', function(e) { bubble.textContent = 'mousedown bubble ' + (e.pageX - pnacl.offsetLeft) + ' ' + (e.pageY - pnacl.offsetTop); }, false);

  </script>
  <embed id="pnacl" width="100" height="100" src="filtering.nmf" type="application/x-pnacl" style="border:1px solid black;" />
</div>

filtering.nmf

{
  "program": {
    "portable": {
      "pnacl-translate": {
        "url": "filtering.pexe"
      }
    }
  }
}

Makefile

SDK = ~/nacl_sdk/pepper_canary

build:
	$(SDK)/toolchain/mac_pnacl/bin/pnacl-clang++ -o filtering.bc filtering.cpp -O2 -I $(SDK)/include -L $(SDK)/lib/pnacl/Release -lppapi_cpp -lppapi
	$(SDK)/toolchain/mac_pnacl/bin/pnacl-finalize -o filtering.pexe filtering.bc

It looks like this is not fixed yet. Need confirmation.