make brianosman a public API owner

... and sort, and remove dead emails

Change-Id: I0ef35918a5b4539559319c32b95109ca7c66f87c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/365519
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

PRESUBMIT.py

@@ -23,15 +23,15 @@ REVERT_CL_SUBJECT_PREFIX = 'Revert '
 
 # Please add the complete email address here (and not just 'xyz@' or 'xyz').
 PUBLIC_API_OWNERS = (
-    'mtklein@google.com',
-    'reed@chromium.org',
-    'reed@google.com',
-    'bsalomon@chromium.org',
+    'brianosman@google.com'
     'bsalomon@google.com',
     'djsollen@chromium.org',
     'djsollen@google.com',
     'hcm@chromium.org',
     'hcm@google.com',
+    'mtklein@google.com',
+    'reed@chromium.org',
+    'reed@google.com',
 )
 
 AUTHORS_FILE_NAME = 'AUTHORS'