Update the maximize button when size constraints change.

chrome/browser/ui/views/panels/panel_frame_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/views/panels/panel_frame_view.h"
 
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_constants.h"
 #include "chrome/browser/ui/views/panels/panel_view.h"
 #include "chrome/browser/ui/views/tab_icon_view.h"
@@ skipping 471 matching lines @@
 }
 
 void PanelFrameView::UpdateWindowIcon() {
   title_icon_->SchedulePaint();
 }
 
 void PanelFrameView::UpdateWindowTitle() {
   title_label_->SetText(panel_view_->panel()->GetWindowTitle());
 }
 
+void PanelFrameView::SizeConstraintsChanged() {
+}
+
 gfx::Size PanelFrameView::GetPreferredSize() const {
   gfx::Size pref_size =
       panel_view_->window()->client_view()->GetPreferredSize();
   gfx::Rect bounds(0, 0, pref_size.width(), pref_size.height());
   return panel_view_->window()->non_client_view()->
       GetWindowBoundsForClientBounds(bounds).size();
 }
 
 const char* PanelFrameView::GetClassName() const {
   return kViewClassName;
@@ skipping 265 matching lines @@
 #endif
 }
 
 bool PanelFrameView::IsWithinResizingArea(
     const gfx::Point& mouse_location) const {
   panel::Resizability resizability = panel_view_->panel()->CanResizeByMouse();
   int edge_hittest = GetFrameEdgeHitTest(
       mouse_location, size(), PanelView::kResizeInsideBoundsSize, resizability);
   return edge_hittest != HTNOWHERE;
 }