Bug 821475. Moz2D: Remove flip when drawing gradient. r=mstange

We muck with the matrix before we draw the text. We need to set it back after.

--HG--
rename : mobile/android/base/FilePicker.java => mobile/android/base/ActivityHandlerHelper.java
extra : rebase_source : 4f937b0b2779ee6c771e030a7ae0894f14a7b211