Add a basic browser to mash that uses the navigation service.

services/navigation/navigation.cc

 // Copyright 2016 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 "services/navigation/navigation.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "services/navigation/view_impl.h"
 
 namespace navigation {
 
 Navigation::Navigation()
     : ref_factory_(base::MessageLoop::QuitWhenIdleClosure()) {
   bindings_.set_connection_error_handler(
       base::Bind(&Navigation::ViewFactoryLost, base::Unretained(this)));
 }
 Navigation::~Navigation() {}
 
-void Navigation::SetBrowserContext(content::BrowserContext* browser_context) {
+void Navigation::Init(shell::Connector* connector,
+                      content::BrowserContext* browser_context) {
+  connector_ = connector;
   browser_context_ = browser_context;
   for (auto& pending : pending_creates_)
     CreateView(std::move(pending.first), std::move(pending.second));
 }
 
 bool Navigation::AcceptConnection(shell::Connection* connection) {
   connection->AddInterface<mojom::ViewFactory>(this);
   return true;
 }
 
 void Navigation::Create(shell::Connection* connection,
                         mojom::ViewFactoryRequest request) {
   bindings_.AddBinding(this, std::move(request));
   refs_.insert(ref_factory_.CreateRef());
 }
 
 void Navigation::CreateView(mojom::ViewClientPtr client,
                             mojom::ViewRequest request) {
   if (!browser_context_) {
     pending_creates_.push_back(
         std::make_pair(std::move(client), std::move(request)));
     return;
   }
-  new ViewImpl(browser_context_, std::move(client), std::move(request),
-               ref_factory_.CreateRef());
+  new ViewImpl(connector_, browser_context_, std::move(client),
+               std::move(request), ref_factory_.CreateRef());
 }
 
 void Navigation::ViewFactoryLost() {
   refs_.erase(refs_.begin());
 }
 
 }  // navigation