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- Exposes material design's deps to be public so that the external
version of material design could depend on its deps from
//third_party/android_deps.

- Replace all usages of the material design target to be a variable.

TBR=just mechanical renaming of material design target

Change-Id: I12e0e6f534aab3fdc0d5f868373f8687d3e41e8e
Bug: 1110346
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321748Reviewed-by: Mohamed Heikal <mheikal@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792354}