Return overlay resources to renderers in larger batches.

cc/quads/draw_quad.h

Index: cc/quads/draw_quad.h
diff --git a/cc/quads/draw_quad.h b/cc/quads/draw_quad.h
index b8ad4f28c8f41cdba312c41ffde84c55cac05878..5e46ea4d2f6d403a83d8c97489297804f6c2238a 100644
--- a/cc/quads/draw_quad.h
+++ b/cc/quads/draw_quad.h
@@ -122,8 +122,8 @@ class CC_EXPORT DrawQuad {
       return ids + count;
     }
 
-    const ResourceId* const_begin() const { return ids; }
-    const ResourceId* const_end() const {
+    const ResourceId* begin() const { return ids; }
+    const ResourceId* end() const {
       DCHECK_LE(count, kMaxResourceIdCount);
       return ids + count;
     }