Damage root layer when viewport or top controls changes.

cc/trees/layer_tree_host_unittest_scroll.cc

Index: cc/trees/layer_tree_host_unittest_scroll.cc
diff --git a/cc/trees/layer_tree_host_unittest_scroll.cc b/cc/trees/layer_tree_host_unittest_scroll.cc
index fbe6c9a8d02d174490fadffe9ae98a607f921f0a..76a369b9aa9048ec6934d9105b631acd4e17fd14 100644
--- a/cc/trees/layer_tree_host_unittest_scroll.cc
+++ b/cc/trees/layer_tree_host_unittest_scroll.cc
@@ -496,7 +496,7 @@ class ImplSidePaintingScrollTest : public LayerTreeHostScrollTest {
   virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
     // Manual vsync tick.
     if (impl->pending_tree())
-      impl->setNeedsRedraw();
+      impl->SetNeedsRedraw();
   }
 };
 
@@ -541,7 +541,7 @@ class ImplSidePaintingScrollTestSimple : public ImplSidePaintingScrollTest {
     // We force a second draw here of the first commit before activating
     // the second commit.
     if (impl->active_tree()->source_frame_number() == 0)
-      impl->setNeedsRedraw();
+      impl->SetNeedsRedraw();
   }
 
   virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {