Use apple-touch-icons for streamlined hosted apps.

chrome/common/web_application_info.cc

 // Copyright (c) 2013 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 "chrome/common/web_application_info.h"
 
-WebApplicationInfo::WebApplicationInfo() {
-  is_bookmark_app = false;
-  is_offline_enabled = false;
+WebApplicationInfo::IconInfo::IconInfo() : width(0), height(0) {
+}
+
+WebApplicationInfo::IconInfo::~IconInfo() {
+}
+
+WebApplicationInfo::WebApplicationInfo()
+    : is_bookmark_app(false), is_offline_enabled(false) {
 }
 
 WebApplicationInfo::~WebApplicationInfo() {
 }