Chromoting iOS src directories should be ignored by the chromium checkout.

.gitignore

 *.gypcmd
 *.mk
 *.ncb
 *.opensdf
 *.orig
 *.pdb
 *.props
 *.pyc
 *.pyproj
 *.rules
@@ skipping 165 matching lines @@
 /delegate_execute
 /device/serial/device_serial_mojo.xml
 /google_apis/gcm/gcm.xml
 /google_apis/internal
 /googleurl
 /gpu/gles2_conform_test
 /gyp-mac-tool
 /internal_gyp
 /ios/build/util/CANARY_VERSION
 /ios/third_party/gcdwebserver/src
+/ios_internal/
 /llvm
 /media/cast/logging/cast_logging_proto_lib.xml
 /media/cdm/api
 /media/media_asm.xml
 /media/media_mojo_bindings.xml
 /media/test/data/internal
 /media/yuv_convert_simd_x86.xml
 /metro_driver
 /mojo/hello_world_service.xml
 /mojo/mojo_application_bindings.xml
@@ skipping 40 matching lines @@
 /net/net_unittests_run.xml
 /net/Release
 /net/testserver.log
 /out*
 /ppapi/native_client/nacl_irt.xml
 /ppapi/native_client/ppapi_lib.xml
 /remoting/android/internal/
 /remoting/appengine/
 /remoting/host/installer/linux/internal/
 /remoting/internal/
+/remoting/ios/
 /remoting/proto/chromotocol_proto_lib.xml
 /remoting/remoting_core_resources.xml
 /remoting/remoting_elevated_controller.xml
 /remoting/remoting_host.xml
 /remoting/remoting_host_event_logger.xml
 /remoting/remoting_host_installation.xml
 /remoting/remoting_host_messages.xml
 /remoting/remoting_infoplist_strings.xml
 /remoting/remoting_lib_idl.xml
 /remoting/remoting_lib_rc.xml
@@ skipping 199 matching lines @@
 /ui/keyboard/keyboard_mojom_bindings.xml
 /ui/surface/surface.xml
 /ui/surface/surface_gpu_tests.xml
 /v8
 /webkit/data
 /webpagereplay_logs/
 /win8/delegate_execute/delegate_execute_version_resources.xml
 /win8/metro_driver/metro_driver_version_resources.xml
 /x86-generic_out/
 /xcodebuild