Minimal number of if-def changes to support OS_IOS in content_main_runner.cc

Revert "Revert 155980 - Minimal number of if-def changes to support OS_IOS in content_main_runner.cc" 

This reverts commit d582fbc2e6a6490096e3b5b6fcafbb228f90fcfe. 

The original CL had moved the initialization of the AtExitManager to within a non-Windows block. This moves it back down to where it was originally, adding a !OS_IOS to the !OS_ANDROID define. 

BUG=None


Review URL: https://chromiumcodereview.appspot.com/10915227

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@156520 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed