PRESUBMIT #include check enhancement: <sys/..> includes can be in any order.

E.g.,
need to be in this order, since the latter uses definitions from the former.

BUG=NONE

Review URL: https://codereview.chromium.org/11418128

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@169290 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 7d93fa2..2fba7a51 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -558,6 +558,9 @@
   """Checks the #include order for the given file f."""
 
   system_include_pattern = input_api.re.compile(r'\s*#include \<.*')
+  # Exclude #include <.../...> includes from the check; e.g., <sys/...> includes
+  # often need to appear in a specific order.
+  excluded_include_pattern = input_api.re.compile(r'\s*#include \<.*/.*')
   custom_include_pattern = input_api.re.compile(r'\s*#include "(?P<FILE>.*)"')
   if_pattern = input_api.re.compile(r'\s*#\s*(if|elif|else|endif).*')
 
@@ -596,8 +599,9 @@
     if if_pattern.match(line):
       scopes.append(current_scope)
       current_scope = []
-    elif (system_include_pattern.match(line) or
-          custom_include_pattern.match(line)):
+    elif ((system_include_pattern.match(line) or
+           custom_include_pattern.match(line)) and
+          not excluded_include_pattern.match(line)):
       current_scope.append((line_num, line))
   scopes.append(current_scope)