Google confirmed Tuesday that it has ported part of QuickOffice, a popular iOS and Android app substitute for Microsoft Office, to a technology baked into Chrome OS and the company's Chrome browser. The search giant acquired QuickOffice in mid-2012, and rolled the iOS and Android apps -- and QuickOffice's development team -- into its Google Apps group. As an app for the iPhone, iPad, and Android-powered smartphones and tablets, QuickOffice lets customers view, create, and edit Word, Excel, and PowerPoint documents.