Replace the Java variable with mRequestPremultiplied, to better
reflect what it represents. In both native and Java, the SkBitmap
is used as the decision maker of whether a Bitmap is premultiplied.
When changing other settings, mRequestedPremultiplied is used to
determine whether it should be premultiplied (if the new config/
hasAlpha-ness etc supports it).
ChooseFromColorProc now reads both the colortype (instead of the
deprecated Config) and alphatype on the SkBitmap. Same with
ChooseToColorProc. In the process, this caught a bug, where the
wrong procs were being used for Index8.
Replace instances of SkBitmap::Config with SkColorType where I
was already changing code.
Use the new versions of setConfig/allocPixels that take an SkImageInfo
as a parameter.
Document isPremultiplied's return value for ALPHA_8.
BUG:13618134
Change-Id: I91fc1f1e46e9294364b1af0ab4bdb37c68d7058e
57ee620ced