Populate the name-to-pseudo map lazily
Populate the name-to-pseudo map lazily

Sort pseudoTypeMap[] to allow using binary search to look up the name.

BUG=365613

Review URL: https://codereview.chromium.org/256563002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@173317 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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