more SkInstCnt plumbing
fix some typeface leaks



git-svn-id: http://skia.googlecode.com/svn/trunk@4348 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkDeferredCanvas.cpp b/src/utils/SkDeferredCanvas.cpp
index ac2b3cc..096120a 100644
--- a/src/utils/SkDeferredCanvas.cpp
+++ b/src/utils/SkDeferredCanvas.cpp
@@ -13,6 +13,8 @@
 #include "SkColorFilter.h"
 #include "SkDrawFilter.h"
 
+SK_DEFINE_INST_COUNT(SkDeferredCanvas::DeviceContext)
+
 namespace {
 
 bool isPaintOpaque(const SkPaint* paint,