cc: Start using raster/eviction iterators.

cc/resources/memory_history.cc

Index: cc/resources/memory_history.cc
diff --git a/cc/resources/memory_history.cc b/cc/resources/memory_history.cc
index a2f8b6ee11308c774be2ef2415d6170bf942012e..4dc49c881a693ea1f6ea54166f2884034bedfa8d 100644
--- a/cc/resources/memory_history.cc
+++ b/cc/resources/memory_history.cc
@@ -24,7 +24,7 @@ void MemoryHistory::GetMinAndMax(size_t* min, size_t* max) const {
   *max = 0;
 
   for (RingBufferType::Iterator it = ring_buffer_.Begin(); it; ++it) {
-    size_t bytes_total = it->bytes_total();
+    size_t bytes_total = it->total_bytes_used;
 
     if (bytes_total < *min)
       *min = bytes_total;