views: Rename IsVisibleInRootView() to IsDrawn().

ui/views/controls/native_control_win.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/native_control_win.h"
 
 #include <windowsx.h>
 
 #include "base/logging.h"
 #include "ui/base/accessibility/accessibility_types.h"
@@ skipping 61 matching lines @@
 
   // Create the HWND when we're added to a valid Widget. Many controls need a
   // parent HWND to function properly.
   if (is_add && GetWidget() && !native_view())
     CreateNativeControl();
 }
 
 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();
   }
 }
 
 void NativeControlWin::OnFocus() {
   DCHECK(native_view());
   SetFocus(native_view());
 
@@ skipping 113 matching lines @@
   } else if (message == WM_DESTROY) {
     native_control->props_.reset();
     ui::SetWindowProc(window, native_control->original_wndproc_);
   }
 
   return CallWindowProc(native_control->original_wndproc_, window, message,
                         w_param, l_param);
 }
 
 }  // namespace views