Clobber frame_data->device_scale_factor to 1 on Android.
On Android, the browser compositor lies to CC about the
device_scale_factor (always setting it to 1), because it places its
layers in physical pixel space. Because of that, the delegated device
scale inversion added in https://codereview.chromium.org/
311253004 does
the wrong thing. Rather than cancelling the inversion with other
transforms, the simplest fix is to lie about the frame_data
device_scale_factor as well.
BUG=383572,383436,384134
NOTRY=true
Review URL: https://codereview.chromium.org/
336433003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276882 0039d316-1c4b-4281-b951-d872f2087c98