Make panel adjust bounds per preferred size change notification on Windows.

chrome/browser/ui/panels/panel_browser_window_gtk.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 "chrome/browser/ui/panels/panel_browser_window_gtk.h"
 
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
 #include "ui/base/dragdrop/gtk_dnd_util.h"
 
@@ skipping 163 matching lines @@
 }
 
 Browser* PanelBrowserWindowGtk::GetPanelBrowser() const {
   return browser();
 }
 
 void PanelBrowserWindowGtk::DestroyPanelBrowser() {
   DestroyBrowser();
 }
 
+gfx::Size PanelBrowserWindowGtk::GetNonClientAreaExtent() const {
+  NOTIMPLEMENTED();
+  return gfx::Size();
+}
+
+int PanelBrowserWindowGtk::GetRestoredHeight() const {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+void PanelBrowserWindowGtk::SetRestoredHeight(int height) {
+  NOTIMPLEMENTED();
+}
+
 void PanelBrowserWindowGtk::SetBoundsImpl() {
   gtk_window_move(window_, bounds_.x(), bounds_.y());
   gtk_window_resize(window(), bounds_.width(), bounds_.height());
 }
 
 void PanelBrowserWindowGtk::WillProcessEvent(GdkEvent* event) {
   // Nothing to do.
 }
 
 void PanelBrowserWindowGtk::DidProcessEvent(GdkEvent* event) {
@@ skipping 189 matching lines @@
       GTK_DRAG_RESULT_USER_CANCELLED);
   MessageLoopForUI::current()->RunAllPending();
 }
 
 void NativePanelTestingGtk::FinishDragTitlebar() {
   panel_browser_window_gtk_->OnDragFailed(
       panel_browser_window_gtk_->drag_widget_, NULL,
       GTK_DRAG_RESULT_NO_TARGET);
   MessageLoopForUI::current()->RunAllPending();
 }