Update the maximize button when size constraints change.

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_NON_CLIENT_FRAME_VIEW_ASH_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_NON_CLIENT_FRAME_VIEW_ASH_H_
 
 #include "ash/shell_observer.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 37 matching lines @@
   // views::NonClientFrameView:
   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const OVERRIDE;
   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
   virtual void GetWindowMask(const gfx::Size& size,
                              gfx::Path* window_mask) OVERRIDE;
   virtual void ResetWindowControls() OVERRIDE;
   virtual void UpdateWindowIcon() OVERRIDE;
   virtual void UpdateWindowTitle() OVERRIDE;
+  virtual void SizeConstraintsChanged() OVERRIDE;
 
   // views::View:
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
   virtual gfx::Size GetMinimumSize() const OVERRIDE;
   virtual void ChildPreferredSizeChanged(views::View* child) OVERRIDE;
 
   // ash::ShellObserver:
@@ skipping 79 matching lines @@
   scoped_ptr<ash::HeaderPainter> header_painter_;
 
   // Updates the hittest bounds overrides based on the window show type.
   scoped_ptr<ash::FrameBorderHitTestController>
       frame_border_hit_test_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserNonClientFrameViewAsh);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_NON_CLIENT_FRAME_VIEW_ASH_H_