ninja/mac: Support iOS codesign for ninja builds.

test/ios/gyptest-per-config-settings.py

Index: test/ios/gyptest-per-config-settings.py
===================================================================
--- test/ios/gyptest-per-config-settings.py	(revision 1754)
+++ test/ios/gyptest-per-config-settings.py	(working copy)
@@ -22,6 +22,13 @@
     print 'File: Expected %s, got %s' % (expected, o)
     test.fail_test()
 
+def CheckSignature(file):
+  proc = subprocess.Popen(['codesign', '-v', file], stdout=subprocess.PIPE)
+  o = proc.communicate()[0].strip()
+  assert not proc.returncode
+  if "code object is not signed at all" in o:
+    print 'File %s not properly signed.' % (file)
+    test.fail_test()
 
 def CheckPlistvalue(plist, key, expected):
   if key not in plist:
@@ -68,6 +75,7 @@
     if configuration == 'Default-iphoneos':
       CheckFileType(result_file, 'armv7')
       CheckPlistvalue(plist, 'CFBundleSupportedPlatforms', ['iPhoneOS'])
+      CheckSignature(result_file)
     else:
       CheckFileType(result_file, 'i386')
       CheckPlistvalue(plist, 'CFBundleSupportedPlatforms', ['iPhoneSimulator'])