Convert Android WebView to store locale .pak files as res/raw resources
Motivation for this is to have webview be consistent with chrome in how
it bundles these. It does also have the side-effect of improving the
look-up time for LocaleDataPakExists.
BUG=
371610
Committed:
https://crrev.com/bffa19f30776f745fc5f6aef5881113781f3bd41
Cr-Commit-Position: refs/heads/master@{#336237}