get iOS building again

gyp/SimpleiOSApp.gyp

 {
   'conditions' : [
     [ 'skia_os != "ios"', {
       'error': '<!(set GYP_DEFINES=\"skia_os=\'ios\'\")'
     }],
   ],
   'targets': [
     {
       'target_name': 'SimpleiOSApp',
       'type': 'executable',
       'mac_bundle' : 1,
       'include_dirs' : [
         '../experimental/iOSSampleApp/Shared',
+        '../src/views/mac',
       ],
       'sources': [
         '../src/views/ios/SkOSWindow_iOS.mm',
-        '../src/views/mac/SkEventNotifier.h',
         '../src/views/mac/SkEventNotifier.mm',
-        '../experimental/iOSSampleApp/iPad/AppDelegate_iPad.h',
         '../experimental/iOSSampleApp/iPad/AppDelegate_iPad.mm',
-        '../experimental/iOSSampleApp/iPhone/AppDelegate_iPhone.h',
         '../experimental/iOSSampleApp/iPhone/AppDelegate_iPhone.mm',
-        '../experimental/iOSSampleApp/Shared/SkUIView.h',
         '../experimental/iOSSampleApp/Shared/SkUIView.mm',
         '../experimental/iOSSampleApp/Shared/skia_ios.mm',
-        '../experimental/SimpleiOSApp/SimpleApp.h',
         '../experimental/SimpleiOSApp/SimpleApp.mm',
         '../experimental/SimpleiOSApp/SimpleiOSApp-Info.plist',
       ],
       'dependencies': [
         'skia_lib.gyp:skia_lib',
         'views.gyp:views',
         'xml.gyp:xml',
       ],
       'link_settings': {
         'libraries': [
@@ skipping 17 matching lines @@
         'INFOPLIST_FILE' : '../experimental/SimpleiOSApp/SimpleiOSApp-Info.plist',
       },
       'xcode_config_file': '../experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig',
       'mac_bundle_resources' : [
         '../experimental/SimpleiOSApp/iPad/MainWindow_iPad.xib',
         '../experimental/SimpleiOSApp/iPhone/MainWindow_iPhone.xib',
       ],
     },
   ],
 }