plumb SkInstCnt to all subclasses of GrRefCnt



git-svn-id: http://skia.googlecode.com/svn/trunk@4353 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index a7d9b67..0760799 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -27,6 +27,9 @@
 #include "SkTLS.h"
 #include "SkTrace.h"
 
+SK_DEFINE_INST_COUNT(GrContext)
+SK_DEFINE_INST_COUNT(GrDrawState)
+
 #define DEFER_TEXT_RENDERING 1
 
 #define DEFER_PATHS 1