参考ionic官方博客
http://blog.ionic.io/crosswalk-comes-to-ionic/
ionic browser add crosswalk ionic run android
cordova集成crosswalk
https://crosswalk-project.org/documentation/cordova/cordova_4.html
cordova plugin add cordova-plugin-crosswalk-webview cordova build android
生成apk: platforms/android/build/outputs/apk
platforms/android/build/outputs/apk/android-x86-debug.apk platforms/android/build/outputs/apk/android-armv7-debug.apk
生成的apk比原先大20MB左右, 内嵌了crosswalk webview
原文：http://my.oschina.net/u/2485194/blog/517964