views: Rename IsVisibleInRootView() to IsDrawn().

ui/views/controls/native_control_win.cc

Index: ui/views/controls/native_control_win.cc
diff --git a/ui/views/controls/native_control_win.cc b/ui/views/controls/native_control_win.cc
index 041b85a058d6d28574a06e4bd078c15c49a5ec22..25278411c35be247c986a08ef6f06b129ff7ba73 100644
--- a/ui/views/controls/native_control_win.cc
+++ b/ui/views/controls/native_control_win.cc
@@ -79,18 +79,18 @@ void NativeControlWin::ViewHierarchyChanged(bool is_add, View* parent,
 void NativeControlWin::VisibilityChanged(View* starting_from, bool is_visible) {
   // We might get called due to visibility changes at any point in the
   // hierarchy, lets check whether we are really visible or not.
-  bool visible = IsVisibleInRootView();
-  if (!visible && native_view()) {
+  bool is_drawn = IsDrawn();
+  if (!is_drawn && native_view()) {
     // We destroy the child control HWND when we become invisible because of the
     // performance cost of maintaining many HWNDs.
     HWND hwnd = native_view();
     Detach();
     DestroyWindow(hwnd);
-  } else if (visible && !native_view()) {
+  } else if (is_drawn && !native_view()) {
     if (GetWidget())
       CreateNativeControl();
   }
-  if (visible) {
+  if (is_drawn) {
     // The view becomes visible after native control is created.
     // Layout now.
     Layout();