Dropdown QA:Open Examples

Build 15099 on move-combo-box-and-dropdown-to-core
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Baseline History
Build 150990a2fb5a
Current build. There are unaccepted changes, so build 15063 is still the baseline.
Build 15063fa3e6af current baseline
Accepted by Josh Wooding.
Commenting is disabled because there's a newer build on this branch