Add a specialized apps::NativeAppWindow for app_shell

apps/shell/browser/shell_apps_client.cc

Index: apps/shell/browser/shell_apps_client.cc
diff --git a/apps/shell/browser/shell_apps_client.cc b/apps/shell/browser/shell_apps_client.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d9efa1f836713c019e68b93289b2b77e7623344e
--- /dev/null
+++ b/apps/shell/browser/shell_apps_client.cc
@@ -0,0 +1,42 @@
+// 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 "apps/shell/browser/shell_apps_client.h"
+
+#include "apps/shell/browser/shell_shell_window_delegate.h"
+#include "apps/shell_window.h"
+
+using content::BrowserContext;
+
+namespace apps {
+
+ShellAppsClient::ShellAppsClient(BrowserContext* browser_context)
+    : browser_context_(browser_context) {}
+
+ShellAppsClient::~ShellAppsClient() {}
+
+std::vector<BrowserContext*> ShellAppsClient::GetLoadedBrowserContexts() {
+  std::vector<BrowserContext*> browser_contexts;
+  browser_contexts.push_back(browser_context_);
+  return browser_contexts;
+}
+
+bool ShellAppsClient::CheckAppLaunch(BrowserContext* context,
+                                     const extensions::Extension* extension) {
+  return true;
+}
+
+ShellWindow* ShellAppsClient::CreateShellWindow(
+    BrowserContext* context,
+    const extensions::Extension* extension) {
+  return new ShellWindow(context, new ShellShellWindowDelegate, extension);
+}
+
+void ShellAppsClient::StartKeepAlive() {
+}
+
+void ShellAppsClient::EndKeepAlive() {
+}
+
+}  // namespace apps