add SkAAClip.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@2447 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/core.gyp b/gyp/core.gyp
index 8f529cd..cfb1bfa 100644
--- a/gyp/core.gyp
+++ b/gyp/core.gyp
@@ -11,6 +11,7 @@
       'sources': [
         '../src/core/ARGB32_Clamp_Bilinear_BitmapShader.h',
         '../src/core/Sk64.cpp',
+        '../src/core/SkAAClip.cpp',
         '../src/core/SkAdvancedTypefaceMetrics.cpp',
         '../src/core/SkAlphaRuns.cpp',
         '../src/core/SkAntiRun.h',