Pass the final URL an app was loaded from to the app in Initialize().

sky/viewer/content_handler_impl.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 "sky/viewer/content_handler_impl.h"
 
 #include "base/bind.h"
 #include "mojo/public/cpp/application/connect.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/services/network/public/interfaces/network_service.mojom.h"
 #include "sky/viewer/document_view.h"
 
 namespace sky {
 
 class SkyApplication : public mojo::Application {
  public:
   SkyApplication(mojo::InterfaceRequest<mojo::Application> application,
                  mojo::URLResponsePtr response)
       : url_(response->url),
         binding_(this, application.Pass()),
         initial_response_(response.Pass()) {}
 
   void Initialize(mojo::ShellPtr shell,
-                  mojo::Array<mojo::String> args) override {
+                  mojo::Array<mojo::String> args,
+                  const mojo::String& url) override {
     shell_ = shell.Pass();
     mojo::ServiceProviderPtr service_provider;
     shell_->ConnectToApplication("mojo:network_service",
                                  mojo::GetProxy(&service_provider), nullptr);
     mojo::ConnectToService(service_provider.get(), &network_service_);
   }
 
   void AcceptConnection(const mojo::String& requestor_url,
                         mojo::InterfaceRequest<mojo::ServiceProvider> services,
                         mojo::ServiceProviderPtr exposed_services) override {
@@ skipping 46 matching lines @@
 ContentHandlerImpl::~ContentHandlerImpl() {
 }
 
 void ContentHandlerImpl::StartApplication(
     mojo::InterfaceRequest<mojo::Application> application,
     mojo::URLResponsePtr response) {
   new SkyApplication(application.Pass(), response.Pass());
 }
 
 }  // namespace sky