Move native_app_window code to apps areas

chrome/browser/ui/apps/chrome_shell_window_delegate.h

Index: chrome/browser/ui/apps/chrome_shell_window_delegate.h
diff --git a/chrome/browser/ui/apps/chrome_shell_window_delegate.h b/chrome/browser/ui/apps/chrome_shell_window_delegate.h
index a0e971dc028fda481a0a9e29ee75517124096a96..1cd3fd762a15202a05f2f2c67644fe9ac5bf2f80 100644
--- a/chrome/browser/ui/apps/chrome_shell_window_delegate.h
+++ b/chrome/browser/ui/apps/chrome_shell_window_delegate.h
@@ -13,8 +13,6 @@
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/rect.h"
 
-namespace chrome {
-
 class ShellWindowLinkDelegate : public content::WebContentsDelegate {
  public:
   ShellWindowLinkDelegate();
@@ -38,6 +36,9 @@ class ChromeShellWindowDelegate : public apps::ShellWindow::Delegate {
  private:
   // apps::ShellWindow::Delegate:
   virtual void InitWebContents(content::WebContents* web_contents) OVERRIDE;
+  virtual apps::NativeAppWindow* CreateNativeAppWindow(
+      apps::ShellWindow* window,
+      const apps::ShellWindow::CreateParams& params) OVERRIDE;
   virtual content::WebContents* OpenURLFromTab(
       Profile* profile,
       content::WebContents* source,
@@ -65,11 +66,14 @@ class ChromeShellWindowDelegate : public apps::ShellWindow::Delegate {
   virtual bool IsWebContentsVisible(
       content::WebContents* web_contents) OVERRIDE;
 
+  // Implemented in platform specific code.
+  static apps::NativeAppWindow* CreateNativeAppWindowImpl(
+      apps::ShellWindow* window,
+      const apps::ShellWindow::CreateParams& params);
+
   scoped_ptr<ShellWindowLinkDelegate> shell_window_link_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeShellWindowDelegate);
 };
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_UI_APPS_CHROME_SHELL_WINDOW_DELEGATE_H_