GitLab

Color of the ripple is no longer the opposite color of the background
color, but either WHITE or BLACK based on the current color mode now.

- Update AshColorProvider::GetRippleAttributes with default value to
  simplify most of the call sites. The default background color is
  GetBackgroundColor() for Shield and Base layer.
- Hard code the logic of notification related, which will not going to
  support dark mode at the first stage.
- Clean up. Removed some unnecessary functions and arguments.

Bug: 1107056
Change-Id: I1adb4232f66c5433eb52920ac5b48c329ade35f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427623
Commit-Queue: Min Chen <minch@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#810534}