Update Panel mininimize/restore button on strip and expansion state change.

chrome/browser/ui/panels/panel_browser_view.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/panels/panel_browser_view.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/native_window_notification_source.h"
 #include "chrome/browser/ui/panels/display_settings_provider.h"
@@ skipping 495 matching lines @@
   // Only handle clicks that started in our window.
   if (!mouse_pressed_)
     return false;
   mouse_pressed_ = false;
 
   mouse_dragging_state_ = DRAGGING_ENDED;
   panel_->manager()->EndDragging(cancelled);
   return true;
 }
 
-void PanelBrowserView::SetPanelAppIconVisibility(bool visible) {
-#if defined(OS_WIN) && !defined(USE_AURA)
-  gfx::NativeWindow native_window = GetNativeHandle();
-  int style = ::GetWindowLong(native_window, GWL_EXSTYLE);
-  int new_style = style;
-  if (visible)
-    new_style &= (~WS_EX_TOOLWINDOW);
-  else
-    new_style |= WS_EX_TOOLWINDOW;
-  if (style != new_style) {
-    ::ShowWindow(native_window, SW_HIDE);
-    ::SetWindowLong(native_window, GWL_EXSTYLE, new_style);
-    ::ShowWindow(native_window, SW_SHOWNA);
-  }
-#else
-  NOTIMPLEMENTED();
-#endif
-}
-
 void PanelBrowserView::SetPanelAlwaysOnTop(bool on_top) {
   GetWidget()->SetAlwaysOnTop(on_top);
   GetWidget()->non_client_view()->Layout();
   GetWidget()->client_view()->Layout();
 }
 
 bool PanelBrowserView::IsAnimatingBounds() const {
   return bounds_animator_.get() && bounds_animator_->is_animating();
 }
 
 void PanelBrowserView::EnableResizeByMouse(bool enable) {
 }
 
+void PanelBrowserView::UpdatePanelMinimizeRestoreButtonVisibility() {
+  GetFrameView()->UpdateTitleBarMinimizeRestoreButtonVisibility();
+}
+
+
 #if defined(OS_WIN) && !defined(USE_AURA)
 void PanelBrowserView::UpdateWindowAttribute(int attribute_index,
                                              int attribute_value,
                                              bool to_set) {
   gfx::NativeWindow native_window = GetNativePanelHandle();
   int value = ::GetWindowLong(native_window, attribute_index);
   int expected_value;
   if (to_set)
     expected_value = value |  attribute_value;
   else
@@ skipping 97 matching lines @@
       return frame_view->close_button_->visible();
     case MINIMIZE_BUTTON:
       return frame_view->minimize_button_->visible();
     case RESTORE_BUTTON:
       return frame_view->restore_button_->visible();
     default:
       NOTREACHED();
   }
   return false;
 }