Cleanup the XML directory in public includes.

gyp/xml.gyp

Index: gyp/xml.gyp
diff --git a/gyp/xml.gyp b/gyp/xml.gyp
index 286a45c07316c5161516435bdbcab4ce3e2e0556..aaceef2e66d6642cbb6165130f3c939888561f59 100644
--- a/gyp/xml.gyp
+++ b/gyp/xml.gyp
@@ -15,15 +15,12 @@
         '../include/xml/SkBML_WXMLParser.h',
         '../include/xml/SkBML_XMLParser.h',
         '../include/xml/SkDOM.h',
-        '../include/xml/SkJS.h',
         '../include/xml/SkXMLParser.h',
         '../include/xml/SkXMLWriter.h',
 
         '../src/xml/SkBML_Verbs.h',
         '../src/xml/SkBML_XMLParser.cpp',
         '../src/xml/SkDOM.cpp',
-        '../src/xml/SkJS.cpp',
-        '../src/xml/SkJSDisplayable.cpp',
         '../src/xml/SkXMLParser.cpp',
         '../src/xml/SkXMLPullParser.cpp',
         '../src/xml/SkXMLWriter.cpp',
@@ -31,16 +28,6 @@
       'sources!': [
           '../src/xml/SkXMLPullParser.cpp', #if 0 around class decl in header
       ],
-      'conditions': [
-        [ 'skia_os in ["win", "mac", "linux", "freebsd", "openbsd", "solaris", "android", "ios", "nacl", "chromeos"]', {
-          'sources!': [
-            # no jsapi.h by default on system
-            '../include/xml/SkJS.h',
-            '../src/xml/SkJS.cpp',
-            '../src/xml/SkJSDisplayable.cpp',
-          ],
-        }],
-      ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../include/xml',