Add code path to SW rasterize paths and upload as a mask texture

Review URL: http://codereview.appspot.com/5542043/



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@3031 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu.gyp b/gpu.gyp
index 9fcded1..454204d 100644
--- a/gpu.gyp
+++ b/gpu.gyp
@@ -144,6 +144,7 @@
         '../include/core',
         '../include/config',
         '../include/gpu',
+        '../src/core', # SkRasterClip.h
       ],
       'dependencies': [
         'libtess.gyp:libtess',