Linux: App windows with frame: chrome and no color are now native.

chrome/browser/ui/views/apps/chrome_native_app_window_views.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 CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 
 #include "apps/ui/views/native_app_window_views.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/views/context_menu_controller.h"
@@ skipping 26 matching lines @@
 
   virtual void InitializeDefaultWindow(
       const apps::AppWindow::CreateParams& create_params);
   virtual void InitializePanelWindow(
       const apps::AppWindow::CreateParams& create_params);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ShapedAppWindowTargeterTest,
                            ResizeInsetsWithinBounds);
 
-  bool ShouldUseNativeFrame() const;
-
   // Installs an EasyResizeWindowTargeter on the containing window, which
   // allows the window to be resized from within |kResizeInsideBoundsSize|
   // pixels inside the window bounds.
   void InstallEasyResizeTargeterOnContainer() const;
 
   // Caller owns the returned object.
   apps::AppWindowFrameView* CreateAppWindowFrameView();
 
   // ui::BaseWindow implementation.
   virtual ui::WindowShowState GetRestoredState() const OVERRIDE;
@@ skipping 53 matching lines @@
       immersive_fullscreen_controller_;
 #endif  // defined(USE_ASH)
 
   // Used to show the system menu.
   scoped_ptr<views::MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeNativeAppWindowViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_