cc: Fix BytesPerPixel issue and refactor.

cc/tiles/tile.cc

Index: cc/tiles/tile.cc
diff --git a/cc/tiles/tile.cc b/cc/tiles/tile.cc
index 6052e5e0457e0f41cca41eab900166237f0bd6ee..ad50dd1c91f502d2033a3fabab00d482d3a06175 100644
--- a/cc/tiles/tile.cc
+++ b/cc/tiles/tile.cc
@@ -71,8 +71,8 @@ size_t Tile::GPUMemoryUsageInBytes() const {
   if (draw_info_.resource_) {
     // We can use UncheckedSizeInBytes, since the tile size is determined by the
     // compositor.
-    return Resource::UncheckedMemorySizeBytes(draw_info_.resource_->size(),
-                                              draw_info_.resource_->format());
+    return ResourceUtil::UncheckedSizeInBytes<size_t>(
+        draw_info_.resource_->size(), draw_info_.resource_->format());
   }
   return 0;
 }