apps: Move chrome's ShellWindowFrameView into apps/

chrome/browser/ui/views/apps/native_app_window_views.h

Index: chrome/browser/ui/views/apps/native_app_window_views.h
diff --git a/chrome/browser/ui/views/apps/native_app_window_views.h b/chrome/browser/ui/views/apps/native_app_window_views.h
index 833393c08d4de3e0dde7776cec5dbd50dfc044a1..29a4128903974e4009609ce980a7486450537d82 100644
--- a/chrome/browser/ui/views/apps/native_app_window_views.h
+++ b/chrome/browser/ui/views/apps/native_app_window_views.h
@@ -23,6 +23,10 @@
 class ExtensionKeybindingRegistryViews;
 class Profile;
 
+namespace apps {
+class ShellWindowFrameView;
+}
+
 namespace content {
 class RenderViewHost;
 class WebContents;
@@ -57,6 +61,9 @@ class NativeAppWindowViews : public apps::NativeAppWindow,
 
   bool ShouldUseChromeStyleFrame() const;
 
+  // Caller owns the returned object.
+  apps::ShellWindowFrameView* CreateShellWindowFrameView();
+
 #if defined(OS_WIN)
   void OnShortcutInfoLoaded(
       const ShellIntegration::ShortcutInfo& shortcut_info);