Support C++11 range-for loops in SkTInternalLList

Bug: skia:
Change-Id: Iad5e06fac95c5b805f3735c106103e5a07975b5d
Reviewed-on: https://skia-review.googlesource.com/127106
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/core/SkTInternalLList.h b/src/core/SkTInternalLList.h
index df06d8a255..2f43f1c1eb 100644
--- a/src/core/SkTInternalLList.h
+++ b/src/core/SkTInternalLList.h
@@ -250,10 +250,25 @@ public:
             return fCurr;
         }
 
+        /**
+         * C++11 range-for interface.
+         */
+        bool operator!=(const Iter& that) { return fCurr != that.fCurr; }
+        T* operator*() { return this->get(); }
+        void operator++() { this->next(); }
+
     private:
         T* fCurr;
     };
 
+    Iter begin() const {
+        Iter iter;
+        iter.init(*this, Iter::kHead_IterStart);
+        return iter;
+    }
+
+    Iter end() const { return Iter(); }
+
 #ifdef SK_DEBUG
     void validate() const {
         SkASSERT(!fHead == !fTail);