When enable_resource_whitelist_generation==1 for release builds, pass unknown-pragmas cflags on Linux and on Android.

BUG=338759

Review URL: https://codereview.chromium.org/282203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271598 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed