Set up AnimationDrawable with an initial frame when it is
constructed from code (via addFrame()). This is equivalent to
what is done when it is constructed via xml resources.
Change-Id: I86784a241268aa2d03af8edecbc80a7cc3548e19
new drawable resources
add <merge> and <include> to layout resource
update drawable class descriptioons to point to resources guide
add ID resource type
Change-Id: I733eec50bb2671f28c9e6dd7dec14eb6586f5193
Now that we are using preloaded drawables in compatibilty mode, when
constructing them from their constant state we need to set the new
drawable's target density appropriately.
Change-Id: I3665cbea09d38b9ac5f45f8c380dc8641f86b266
