Chromoting Android: Add Credits screen.
(re-land of https://codereview.chromium.org/
1202523007)
This also slightly changes the behavior of the embedded WebView. Now it
only renders content inline if it originates from the initial host that
it was told to use (otherwise it launches an external browser). This
simplifies the code (by using a single explicitly-defined
WebViewClient implementation).
BUG=499478
Review URL: https://codereview.chromium.org/
1207073003
Cr-Commit-Position: refs/heads/master@{#336079}