add SkPictureUtils::GatherPixelRefs()
Review URL: https://codereview.appspot.com/6845106

git-svn-id: http://skia.googlecode.com/svn/trunk@6615 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/utils.gyp b/gyp/utils.gyp
index 706b851..7bbe67c 100644
--- a/gyp/utils.gyp
+++ b/gyp/utils.gyp
@@ -70,6 +70,7 @@
         '../src/utils/SkParse.cpp',
         '../src/utils/SkParseColor.cpp',
         '../src/utils/SkParsePath.cpp',
+        '../src/utils/SkPictureUtils.cpp',
         '../src/utils/SkProxyCanvas.cpp',
         '../src/utils/SkThreadUtils.h',
         '../src/utils/SkThreadUtils_pthread.cpp',