Update the maximize button when size constraints change.

ash/wm/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 "ash/wm/panels/panel_frame_view.h"
 
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/frame/default_header_painter.h"
 #include "ash/frame/frame_border_hit_test_controller.h"
 #include "ui/base/hit_test.h"
@@ skipping 79 matching lines @@
     window_icon_->SetImage(delegate->GetWindowIcon());
   window_icon_->SchedulePaint();
 }
 
 void PanelFrameView::UpdateWindowTitle() {
   if (!header_painter_)
     return;
   header_painter_->SchedulePaintForTitle();
 }
 
+void PanelFrameView::SizeConstraintsChanged() {
+}
+
 int PanelFrameView::NonClientHitTest(const gfx::Point& point) {
   if (!header_painter_)
     return HTNOWHERE;
   return FrameBorderHitTestController::NonClientHitTest(this,
       caption_button_container_, point);
 }
 
 void PanelFrameView::OnPaint(gfx::Canvas* canvas) {
   if (!header_painter_)
     return;
@@ skipping 12 matching lines @@
 }
 
 gfx::Rect PanelFrameView::GetWindowBoundsForClientBounds(
     const gfx::Rect& client_bounds) const {
   gfx::Rect window_bounds = client_bounds;
   window_bounds.Inset(0, -NonClientTopBorderHeight(), 0, 0);
   return window_bounds;
 }
 
 }  // namespace ash