Remove usage of FOR_EACH_OBSERVER macro in mojo

mojo/edk/js/handle.cc

 // 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 "mojo/edk/js/handle.h"
 
 #include "mojo/edk/js/handle_close_observer.h"
 
 namespace mojo {
 namespace edk {
@@ skipping 19 matching lines @@
 }
 
 void HandleWrapper::RemoveCloseObserver(HandleCloseObserver* observer) {
   close_observers_.RemoveObserver(observer);
 }
 
 void HandleWrapper::NotifyCloseObservers() {
   if (!handle_.is_valid())
     return;
 
-  FOR_EACH_OBSERVER(HandleCloseObserver, close_observers_, OnWillCloseHandle());
+  for (auto& observer : close_observers_)
+    observer.OnWillCloseHandle();
 }
 
 }  // namespace js
 }  // namespace edk
 }  // namespace mojo
 
 namespace gin {
 
 v8::Handle<v8::Value> Converter<mojo::Handle>::ToV8(v8::Isolate* isolate,
                                                     const mojo::Handle& val) {
@@ skipping 24 matching lines @@
   return Converter<mojo::Handle>::ToV8(isolate, val);
 }
 
 bool Converter<mojo::MessagePipeHandle>::FromV8(v8::Isolate* isolate,
                                                 v8::Handle<v8::Value> val,
                                                 mojo::MessagePipeHandle* out) {
   return Converter<mojo::Handle>::FromV8(isolate, val, out);
 }
 
 }  // namespace gin