cc: Start using raster/eviction iterators in tile manager

cc/layers/heads_up_display_layer_impl.cc

Index: cc/layers/heads_up_display_layer_impl.cc
diff --git a/cc/layers/heads_up_display_layer_impl.cc b/cc/layers/heads_up_display_layer_impl.cc
index 6149a06be0cf9b05b595e9f0a580af9e78ce5470..c3819d9dae9d05cbf6686a43dfd335287a542a6d 100644
--- a/cc/layers/heads_up_display_layer_impl.cc
+++ b/cc/layers/heads_up_display_layer_impl.cc
@@ -491,14 +491,10 @@ SkRect HeadsUpDisplayLayerImpl::DrawMemoryDisplay(SkCanvas* canvas,
                           memory_entry_.bytes_allocated) / megabyte);
   DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat1_pos);
 
-  if (memory_entry_.bytes_over) {
+  if (!memory_entry_.had_enough_memory)
     paint.setColor(SK_ColorRED);
-    text = base::StringPrintf("%6.1f MB over",
-                              memory_entry_.bytes_over / megabyte);
-  } else {
-    text = base::StringPrintf("%6.1f MB max ",
-                              memory_entry_.total_budget_in_bytes / megabyte);
-  }
+  text = base::StringPrintf("%6.1f MB max ",
+                            memory_entry_.total_budget_in_bytes / megabyte);
   DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat2_pos);
 
   return area;