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This CL replaces the existing system colours by Google material colours.

Bug: 1155472
Change-Id: Ia9c9e8f31d65fe1db70fd29ad94ca370d0aede07
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2595050Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Javier Flores <javierrobles@chromium.org>
Commit-Queue: Ewann Pellé <ewannpv@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840999}