Chromecast Android: fix for 100% crash when child process is launched.

GPU process is launching before CrashDumpManager is initialized,
calling into CastContentBrowserClient::GetAdditionalMappedFilesForProcess.

Make sure to start CrashDumpManager earlier.

R=lcwu@chromium.org,kjoswiak@chromium.org
BUG=None

Review URL: https://codereview.chromium.org/893303002

Cr-Commit-Position: refs/heads/master@{#314449}
1 file changed