Remove some InterfacePtr<> methods which directly deal with message pipe handles.

sky/engine/core/html/HTMLIFrameElement.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/html/HTMLIFrameElement.h"
 
 #include "gen/sky/core/HTMLNames.h"
 #include "sky/engine/core/frame/LocalFrame.h"
 #include "sky/engine/core/html/parser/HTMLParserIdioms.h"
@@ skipping 67 matching lines @@
 PassRefPtr<DartValue> HTMLIFrameElement::takeExposedServicesHandle(DartState*)
 {
     return DartValue::Create();
 }
 
 void HTMLIFrameElement::embedViewManagerClient(RefPtr<DartValue> client)
 {
   if (!m_contentView)
     return;
 
-  m_contentView->Embed(mojo::MakeProxy<mojo::ViewManagerClient>(
-      DartConverter<mojo::ScopedMessagePipeHandle>::FromDart(client->dart_value())));
+  m_contentView->Embed(mojo::MakeProxy(
+      mojo::InterfacePtrInfo<mojo::ViewManagerClient>(

[jamesr, 2015/04/30 23:00:46]

this could probably use a temporary variable or few to make things a bit
clearer. there are many layers of conversion happening

[yzshen1, 2015/04/30 23:21:56]

Done.

+          DartConverter<mojo::ScopedMessagePipeHandle>::FromDart(client->dart_value()), 0u)));
 }
 
 void HTMLIFrameElement::navigateView()
 {
     if (!m_contentView)
         return;
 
     String urlString = stripLeadingAndTrailingHTMLSpaces(getAttribute(HTMLNames::srcAttr));
     if (urlString.isEmpty())
         urlString = blankURL().string();
 
     KURL url = document().completeURL(urlString);
 
     mojo::MessagePipe exposedServicesPipe;
     m_exposedServices = exposedServicesPipe.handle0.Pass();
 
     m_contentView->Embed(mojo::String::From(url.string().utf8().data()),
         mojo::GetProxy(&m_services),
-        mojo::MakeProxy<mojo::ServiceProvider>(exposedServicesPipe.handle1.Pass()));
+        mojo::MakeProxy(mojo::InterfacePtrInfo<mojo::ServiceProvider>(exposedServicesPipe.handle1.Pass(), 0u)));
 }
 
 }