Add ShellAppsClient, ShellAppDelegate, ShellNativeAppWindow

extensions/shell/browser/shell_browser_main_parts.cc

Index: extensions/shell/browser/shell_browser_main_parts.cc
diff --git a/extensions/shell/browser/shell_browser_main_parts.cc b/extensions/shell/browser/shell_browser_main_parts.cc
index bc5ac7c96865315c3ffe7e3d43e21ac0ef7af51c..9608a42c894f06d6ea080dcf8086f53ad45695de 100644
--- a/extensions/shell/browser/shell_browser_main_parts.cc
+++ b/extensions/shell/browser/shell_browser_main_parts.cc
@@ -14,6 +14,7 @@
 #include "content/shell/browser/shell_net_log.h"
 #include "extensions/browser/browser_context_keyed_service_factories.h"
 #include "extensions/browser/extension_system.h"
+#include "extensions/shell/browser/shell_apps_client.h"
 #include "extensions/shell/browser/shell_browser_context.h"
 #include "extensions/shell/browser/shell_browser_main_delegate.h"
 #include "extensions/shell/browser/shell_desktop_controller.h"
@@ -109,6 +110,9 @@ void ShellBrowserMainParts::PreMainMessageLoopRun() {
 
   device_client_.reset(new ShellDeviceClient);
 
+  apps_client_.reset(new ShellAppsClient());
+  extensions::AppsClient::Set(apps_client_.get());
+
   extensions_client_.reset(new ShellExtensionsClient());
   ExtensionsClient::Set(extensions_client_.get());