Adding support to trunk for building Skia using the Android NDK.

This CL depends on a subsequent CL to add the appropriate NDK
toolchain and system sources to the skia repo.

Review URL: http://codereview.appspot.com/5306089/
Review URL: http://codereview.appspot.com/5306089

git-svn-id: http://skia.googlecode.com/svn/trunk@2592 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/xml.gyp b/gyp/xml.gyp
index 5c9edb2..7da8666 100644
--- a/gyp/xml.gyp
+++ b/gyp/xml.gyp
@@ -33,7 +33,7 @@
           '../src/xml/SkXMLPullParser.cpp', #if 0 around class decl in header
       ],
       'conditions': [
-        [ 'skia_os in ["win", "mac", "linux", "freebsd", "openbsd", "solaris"]', {
+        [ 'skia_os in ["win", "mac", "linux", "freebsd", "openbsd", "solaris", "android"]', {
           'sources!': [
             # no jsapi.h by default on system
             '../include/xml/SkJS.h',