Added instance counting system for SkRefCnt-derived objects

http://codereview.appspot.com/6242070/



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@4162 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/core.gyp b/core.gyp
index aea2a73..f50d64a 100644
--- a/core.gyp
+++ b/core.gyp
@@ -112,6 +112,7 @@
         '../src/core/SkRasterClip.cpp',
         '../src/core/SkRasterizer.cpp',
         '../src/core/SkRect.cpp',
+        '../src/core/SkRefCnt.cpp',
         '../src/core/SkRefDict.cpp',
         '../src/core/SkRegion.cpp',
         '../src/core/SkRegionPriv.h',
@@ -185,6 +186,7 @@
         '../include/core/SkFontHost.h',
         '../include/core/SkGeometry.h',
         '../include/core/SkGraphics.h',
+        '../include/core/SkInstCnt.h',
         '../include/core/SkMallocPixelRef.h',
         '../include/core/SkMask.h',
         '../include/core/SkMaskFilter.h',