private iterator to visit all resource cache entries

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1271033002

1 files changed, 3 insertions, 0 deletions

diff --git a/src/lazy/SkDiscardablePixelRef.h b/src/lazy/SkDiscardablePixelRef.h
index 6f422e31db..e8451ee269 100644
--- a/src/lazy/SkDiscardablePixelRef.h
+++ b/src/lazy/SkDiscardablePixelRef.h
@@ -21,6 +21,9 @@
 class SkDiscardablePixelRef : public SkPixelRef {
 public:
     
+    SkDiscardableMemory* diagnostic_only_getDiscardable() const override {
+        return fDiscardableMemory;
+    }
 
 protected:
     ~SkDiscardablePixelRef();