ui: Add a WebComponentsV0 origin trial for localhost
ui: Add a WebComponentsV0 origin trial for localhost

So we can use "Open in Legacy UI" locally too.

Bug: 148451271
Change-Id: I24483817e6ada9b0c96bd46e7871438e5a536528
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto