[ios] Made web_main_runner.h header public.

ios/web/ios_web.gyp

Index: ios/web/ios_web.gyp
diff --git a/ios/web/ios_web.gyp b/ios/web/ios_web.gyp
index 5c88f8dba217b1b1ca553c959405ab48aff5409b..b4e1b7e436679a8720c5c744eec6002f4f8f7eb5 100644
--- a/ios/web/ios_web.gyp
+++ b/ios/web/ios_web.gyp
@@ -28,11 +28,11 @@
         'app/web_main.mm',
         'app/web_main_loop.h',
         'app/web_main_loop.mm',
-        'app/web_main_runner.h',
         'app/web_main_runner.mm',
         'public/app/web_main.h',
         'public/app/web_main_delegate.h',
         'public/app/web_main_parts.h',
+        'public/app/web_main_runner.h',
       ],
     },
     {
@@ -525,9 +525,9 @@
         'test/test_web_thread_bundle.cc',
         'test/web_int_test.h',
         'test/web_int_test.mm',
+        'test/web_test_suite.mm',
         'test/web_test_with_web_controller.h',
         'test/web_test_with_web_controller.mm',
-        'test/web_test_suite.mm',
         'test/wk_web_view_crash_utils.h',
         'test/wk_web_view_crash_utils.mm',
       ],