Color: Clean up color profile handling for layout tests
Allow layout tests to manually specify an output ICC profile
through the ContentRendererClient.
Match existing behavior on all platforms. This means:
- on Mac, using a generic RGB profile
- on Linux, not specifying a profile
- on Windows, leave this as TODO, since correct behavior is unclear
Remove layout_test_helper on Mac, since its only purpose was
to set the system color space to the now-specified color space.
Remove copyright exceptions for layout_test_helper as well.
BUG=44872
Review-Url: https://codereview.chromium.org/2226733003
Cr-Commit-Position: refs/heads/master@{#416170}
11 files changed
