Fix the !defined(ENABLE_PLUGINS) code path to properly initialize return variables of the function when plugin support is disabled build time.

Review URL: https://codereview.chromium.org/110013007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243019 0039d316-1c4b-4281-b951-d872f2087c98
Linux: Do not bother to check for PR_SET_NAME at compile time.

PR_SET_NAME has been available since Linux 2.6.9, which is nearly 10 years old.

Review URL: https://codereview.chromium.org/111833007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243020 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243020