Rename WindowTreeHost functions to indicate pixels/dips.

ash/host/ash_window_tree_host.cc

Index: ash/host/ash_window_tree_host.cc
diff --git a/ash/host/ash_window_tree_host.cc b/ash/host/ash_window_tree_host.cc
index c704aa6708a89b912b7239894ee0fce54041a052..0debd6b841f5bdec04537dabb33a40f463907b9b 100644
--- a/ash/host/ash_window_tree_host.cc
+++ b/ash/host/ash_window_tree_host.cc
@@ -50,7 +50,7 @@ void AshWindowTreeHost::TranslateLocatedEvent(ui::LocatedEvent* event) {
     // host window, then convert it back to this host window's coordinate.
     screen_position_client->ConvertHostPointToScreen(root_window, &location);
     screen_position_client->ConvertPointFromScreen(root_window, &location);
-    wth->ConvertPointToHost(&location);
+    wth->ConvertPointFromDIPToHost(&location);
     event->set_location(location);
     event->set_root_location(location);
   }