tree caeb000b1bf284bd6c73b70aa2953cfd071ebae0
parent f2af8326501d72bf3fb23f0c62ade28310836ba9
author Lei Zhang <thestig@chromium.org> 1513811906 -0800
committer Chromium commit bot <commit-bot@chromium.org> 1513884505 +0000

Clean up CPDF_Color.

- Add IsPatternInternal().
- Mark some method parameters const.
- Explain relationship between member variables.

Change-Id: I650e18012341199985a4537e08c787e46cf8fef7
Reviewed-on: https://pdfium-review.googlesource.com/21912
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>