Allow unit_tests (and other non-bundle executables) to rely on objectiveC that's

not directly referenced (such as only in a nib file). Add test for tab
controller.

git-svn-id: http://src.chromium.org/svn/trunk/src/build@13838 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -293,10 +293,8 @@
         },
         'target_conditions': [
           ['_type!="static_library"', {
-            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first', 
-          }],
+                                                 '-Wl,-ObjC']},
-          ['_mac_bundle', {
-            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
           }],
           ['_type=="executable"', {
             'postbuilds': [