(later, we will decide this more accurately based on the width of the screen in dips, but for now keeping changes so that they can easily be backported to earlier versions of Android)
Change-Id: I203addcbf19e8e3813c488af47e4fdf90dcd3115
So we can use different scales of the default activity icon, switch to
using the mipmap version of it.
Bug: 3325002
Change-Id: I3307bc8959829958e0da4ab2a9238c89ff9fdead
used for the workspace.
Consolidate the three icon resampling functions into one.
Ensure that the icons stored in LauncherProvider are the right size, so we don't have to resample
them each time we load them.