commit 053509a4127881aa90bd365935125436589c9530
author commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mon Dec 02 22:32:54 2013 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mon Dec 02 22:32:54 2013 +0000
tree b9d5097deb2318a6e0baa631b531bc48408b6c7b
parent d7424edf8fd22bcb983933dc48608db3ec538582

SkDiscardablePixelRef objects are now marked immutable.

I also specifically mentioned in the SkImageGenerator documentation
that it should always return the same information on subsequent calls
to getInfo() and getPixels().

Motivation: When a bitmap is recorded into a SkPicture, it will choose
whether to shallow- or deep-copy itself into the SkBitmapHeap based on
the immutable flag.  Failing to set it would make picture recording slow.

BUG=
R=fmalita@google.com, reed@google.com, scroggo@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/99303003

git-svn-id: http://skia.googlecode.com/svn/trunk/src@12445 2bbb7eff-a529-9590-31e7-b0007b416f81