cc: Remove vectors from tiling eviction tile iterator.

cc/resources/picture_layer_tiling_set.h

Index: cc/resources/picture_layer_tiling_set.h
diff --git a/cc/resources/picture_layer_tiling_set.h b/cc/resources/picture_layer_tiling_set.h
index d37d9d593565d7b1460ac0d264056c950b5a76cd..8ea0cca263a8112094d358b7d69b5153e1bfa374 100644
--- a/cc/resources/picture_layer_tiling_set.h
+++ b/cc/resources/picture_layer_tiling_set.h
@@ -24,6 +24,10 @@ class CC_EXPORT PictureLayerTilingSet {
   struct TilingRange {
     TilingRange(size_t start, size_t end) : start(start), end(end) {}
 
+    bool IsIndexWithinRange(size_t index) const {
+      return index >= start && index < end;
+    }

[reveman, 2014/08/01 17:54:47]

I don't think we need this. I can't see a reason why you would have to check
that "index >= start".

[vmpstr, 2014/08/01 19:39:50]

We iterate two of the ranges in reverse order, so we need to know both if we end
up below start and if we end up at or above end

+
     size_t start;
     size_t end;
   };