The common web consensus seems to be that if you see a name in your chrome emulator, you can use it as-is in your protractor config ... so I tried Apple iPad
:
So I found some sources but they seemed to referencing links that didn't exist anymore. This seems to be the best result I could find?
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/devtools/front_end/emulation/OverridesUI.js&l=338
EDIT: This list seems like the master list https://code.google.com/p/chromium/codesearch#chromium/src/chrome/test/chromedriver/chrome/mobile_device_list.cc