Rename cc::ScrollNode's inner and outer viewport members

cc/trees/layer_tree_host_common_unittest.cc

Index: cc/trees/layer_tree_host_common_unittest.cc
diff --git a/cc/trees/layer_tree_host_common_unittest.cc b/cc/trees/layer_tree_host_common_unittest.cc
index 969398354c27a08fbe0a5efc614eac2302d1ede4..090f0d5c57009a2dc132bb90d9aab7669d33f804 100644
--- a/cc/trees/layer_tree_host_common_unittest.cc
+++ b/cc/trees/layer_tree_host_common_unittest.cc
@@ -10687,7 +10687,7 @@ TEST_F(LayerTreeHostCommonTest, ScrollTreeBuilderTest) {
   scroll_parent2.scroll_clip_layer_bounds = root1->bounds();
   scroll_parent2.bounds = parent2->bounds();
   scroll_parent2.max_scroll_offset_affected_by_page_scale = true;
-  scroll_parent2.is_inner_viewport_scroll_layer = true;
+  scroll_parent2.scrolls_inner_viewport = true;
   scroll_parent2.user_scrollable_horizontal = true;
   scroll_parent2.user_scrollable_vertical = true;
   scroll_parent2.transform_id = parent2->transform_tree_index();