While investigating a blimp issue where we accidentally started passing high filter quality flag on svelte devices, we bumped into an issue where we can't scale a pixmap if the draw info has an RGBA_4444 color type. 

Specifically this switch statement ends up returning false:

https://code.google.com/p/chromium/codesearch#chromium/src/third_party/skia/src/image/SkSurface_Raster.cpp&sq=package:chromium&l=50&rcl=1459970814

I guess, the question is: is this intentional? Why can't we support RGBA_4444 in this case?