Update the maximize button when size constraints change.

athena/activity/activity_frame_view.cc

 // Copyright 2014 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 "athena/activity/activity_frame_view.h"
 
 #include "athena/activity/public/activity_view_model.h"
 #include "athena/wm/public/window_manager.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/hit_test.h"
@@ skipping 103 matching lines @@
   SchedulePaint();
 }
 
 void ActivityFrameView::UpdateWindowTitle() {
   if (!view_model_->UsesFrame())
     return;
   title_->SetText(frame_->widget_delegate()->GetWindowTitle());
   Layout();
 }
 
+void ActivityFrameView::SizeConstraintsChanged() {
+}
+
 gfx::Size ActivityFrameView::GetPreferredSize() const {
   gfx::Size pref = frame_->client_view()->GetPreferredSize();
   gfx::Rect bounds(0, 0, pref.width(), pref.height());
   return frame_->non_client_view()
       ->GetWindowBoundsForClientBounds(bounds)
       .size();
 }
 
 const char* ActivityFrameView::GetClassName() const {
   return kViewClassName;
@@ skipping 73 matching lines @@
   return in_overview_ ? kOverviewBorderThickness : 0;
 }
 
 int ActivityFrameView::NonClientTopBorderHeight() const {
   if (frame_->IsFullscreen() || !view_model_->UsesFrame())
     return in_overview_ ? kOverviewShortTitleHeight : 0;
   return in_overview_ ? kOverviewTitleHeight : kDefaultTitleHeight;
 }
 
 }  // namespace athena