This is just a cleanup CL which fixes:
- Some erroneous debug messages about the relro creator process.
- The condition checked in WebViewUpdateService, to prevent the
WebView to be used from the SystemServer (it now looks at the
process id, previously it was erroneously looking at the uid).
- Adds a 5s. timeout to the waitForRelroCreationCompleted.
BUG:16403706
Change-Id: I43a953949050d7df5fe334cfa7257315ee6db071