Skip ElfCoreDumpTest and LinuxCoreDumperTest on Android if no core file is dumped.

On certain versions of Android (specifically JellyBean MR2 on Nexus 7, possibly
others too) no ELF core dump is created for crashing processes.  Check for this
and skip the test if so.

BUG=364943
R=thestig@chromium.org

Review URL: https://breakpad.appspot.com/1624003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1318 4c0a9323-5329-0410-9bdc-e9ce6186880e
Change PrintFunctions to print functions in address order and not print duplicate public functions.

BUG=427
R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1634002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1319 4c0a9323-5329-0410-9bdc-e9ce6186880e
Linux: Check the CRC32 of the debug link file in the symbol dumper.

R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1644002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1320 4c0a9323-5329-0410-9bdc-e9ce6186880e