Mojo JS Bindings: Simplify sharing services for content-provided JS applications

mojo/bindings/js/handle.h

 // 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.
 
 #ifndef MOJO_BINDINGS_JS_HANDLE_H_
 #define MOJO_BINDINGS_JS_HANDLE_H_
 
 #include "base/observer_list.h"
 #include "gin/converter.h"
 #include "gin/handle.h"
@@ skipping 47 matching lines @@
 // there's no way to prevent against accidental use.
 // TODO(mpcomplete): define converters for all Handle subtypes.
 template<>
 struct Converter<mojo::Handle> {
   static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
                                     const mojo::Handle& val);
   static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
                      mojo::Handle* out);
 };
 
+template<>
+struct Converter<mojo::MessagePipeHandle> {
+  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+                                    mojo::MessagePipeHandle val);
+  static bool FromV8(v8::Isolate* isolate,
+                     v8::Handle<v8::Value> val,
+                     mojo::MessagePipeHandle* out);
+};
+
 // We need to specialize the normal gin::Handle converter in order to handle
 // converting |null| to a wrapper for an empty mojo::Handle.
 template<>
 struct Converter<gin::Handle<mojo::js::HandleWrapper> > {
   static v8::Handle<v8::Value> ToV8(
         v8::Isolate* isolate, const gin::Handle<mojo::js::HandleWrapper>& val) {
     return val.ToV8();
   }
 
   static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
                      gin::Handle<mojo::js::HandleWrapper>* out) {
     if (val->IsNull()) {
       *out = mojo::js::HandleWrapper::Create(isolate, MOJO_HANDLE_INVALID);
       return true;
     }
 
     mojo::js::HandleWrapper* object = NULL;
     if (!Converter<mojo::js::HandleWrapper*>::FromV8(isolate, val, &object)) {
       return false;
     }
     *out = gin::Handle<mojo::js::HandleWrapper>(val, object);
     return true;
   }
 };
 
 }  // namespace gin
 
 #endif  // MOJO_BINDINGS_JS_HANDLE_H_