Fix FLEX-33929 - NPE proxy.bitmapData is null on Android
FIX  FLEX-33166 Mobile TextInput with native StageTextInput cannot be included in scrollable forms
  FIX SUB: https://issues.apache.org/jira/browse/FLEX-33931 Cannot initiate view scrolling by touching a TextInput/TextArea
Manually tested on:
- iOS6 (ipad 2)
- iOS7 (iPad 3)
- ADL on Windows
Mustella test pass:
mobile/components/TextInput
mobile/components/TextArea
mobile/SoftKeyboard
mobile/components/ActionBar