Do all OOLing in the views code. linux_views now builds clean with the clang plugin.

views/window/window.h

 // Copyright (c) 2010 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 VIEWS_WINDOW_WINDOW_H_
 #define VIEWS_WINDOW_WINDOW_H_
 #pragma once
 
 #include "ui/gfx/native_widget_types.h"
 
@@ skipping 120 matching lines @@
   virtual void SetFullscreen(bool fullscreen) = 0;
   virtual bool IsFullscreen() const = 0;
 
   // Sets whether or not the window should show its frame as a "transient drag
   // frame" - slightly transparent and without the standard window controls.
   virtual void SetUseDragFrame(bool use_drag_frame) = 0;
 
   // Returns true if the Window is considered to be an "app window" - i.e.
   // any window which when it is the last of its type closed causes the
   // application to exit.
-  virtual bool IsAppWindow() const { return false; }
+  virtual bool IsAppWindow() const;
 
   // Toggles the enable state for the Close button (and the Close menu item in
   // the system menu).
   virtual void EnableClose(bool enable) = 0;
 
   // Tell the window to update its title from the delegate.
   virtual void UpdateWindowTitle() = 0;
 
   // Tell the window to update its icon from the delegate.
   virtual void UpdateWindowIcon() = 0;
@@ skipping 22 matching lines @@
   // Whether we should be using a native frame.
   virtual bool ShouldUseNativeFrame() const = 0;
 
   // Tell the window that something caused the frame type to change.
   virtual void FrameTypeChanged() = 0;
 };
 
 }  // namespace views
 
 #endif  // #ifndef VIEWS_WINDOW_WINDOW_H_