Add SkCopyPixelsMode argument to SkMakeImageInColorSpace

Deferred rendering in Android will need the ability to use this in
kIfMutable mode.

Bug: skia:
Change-Id: I5194f2c50f9d17351fdab49373ca9bc1e80cf586
Reviewed-on: https://skia-review.googlesource.com/20157
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
4 files changed