[MacViews] Implement size constraints for app windows.

ui/views/cocoa/bridged_native_widget.h

 // 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.
 
 #ifndef UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 #define UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 
 #import <Cocoa/Cocoa.h>
 #include <vector>
 
@@ skipping 107 matching lines @@
   // Explicitly set the visibility. This is called when Cocoa requests a draw,
   // but hasn't updated the value of -[NSWindow isVisible] yet.
   void OnVisibilityChangedTo(bool new_visibility);
 
   // Called by the NSWindowDelegate on a scale factor or color space change.
   void OnBackingPropertiesChanged();
 
   // Called by the NSWindowDelegate when the window becomes or resigns key.
   void OnWindowKeyStatusChangedTo(bool is_key);
 
+  // Called by NativeWidgetMac when the window size constraints change.
+  void OnSizeConstraintsChanged();
+
   // See widget.h for documentation.
   InputMethod* CreateInputMethod();
   ui::InputMethod* GetHostInputMethod();
 
   // The restored bounds will be derived from the current NSWindow frame unless
   // fullscreen or transitioning between fullscreen states.
   gfx::Rect GetRestoredBounds() const;
 
   // Creates a ui::Compositor which becomes responsible for drawing the window.
   void CreateLayer(ui::LayerType layer_type, bool translucent);
@@ skipping 107 matching lines @@
   // If true, the window is either visible, or wants to be visible but is
   // currently hidden due to having a hidden parent.
   bool wants_to_be_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(BridgedNativeWidget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_