Adds a way to determine id of content handler that created app

content/browser/frame_host/frame_mojo_shell.cc

 // Copyright 2015 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 "content/browser/frame_host/frame_mojo_shell.h"
 
 #include "content/browser/mojo/mojo_shell_context.h"
 #include "content/common/mojo/service_registry_impl.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_frame_host.h"
@@ skipping 14 matching lines @@
   bindings_.AddBinding(this, shell_request.Pass());
 }
 
 // TODO(xhwang): Currently no callers are exposing |exposed_services|. So we
 // drop it and replace it with services we provide in the browser. In the
 // future we may need to support both.
 void FrameMojoShell::ConnectToApplication(
     mojo::URLRequestPtr application_url,
     mojo::InterfaceRequest<mojo::ServiceProvider> services,
     mojo::ServiceProviderPtr /* exposed_services */,
-    mojo::CapabilityFilterPtr filter) {
+    mojo::CapabilityFilterPtr filter,
+    const ConnectToApplicationCallback& callback) {
   mojo::ServiceProviderPtr frame_services;
   service_provider_bindings_.AddBinding(GetServiceRegistry(),
                                         GetProxy(&frame_services));
 
   mojo::shell::CapabilityFilter capability_filter =
       mojo::shell::GetPermissiveCapabilityFilter();
   if (!filter.is_null())
     capability_filter = filter->filter.To<mojo::shell::CapabilityFilter>();
   MojoShellContext::ConnectToApplication(
       GURL(application_url->url), frame_host_->GetSiteInstance()->GetSiteURL(),
-      services.Pass(), frame_services.Pass(), capability_filter);
+      services.Pass(), frame_services.Pass(), capability_filter, callback);
 }
 
 void FrameMojoShell::QuitApplication() {
 }
 
 ServiceRegistryImpl* FrameMojoShell::GetServiceRegistry() {
   if (!service_registry_) {
     service_registry_.reset(new ServiceRegistryImpl());
 
     GetContentClient()->browser()->RegisterFrameMojoShellServices(
         service_registry_.get(), frame_host_);
   }
 
   return service_registry_.get();
 }
 
 }  // namespace content