Move apps/shell to extensions/shell.

apps/shell/browser/shell_extension_web_contents_observer.h

Index: apps/shell/browser/shell_extension_web_contents_observer.h
diff --git a/apps/shell/browser/shell_extension_web_contents_observer.h b/apps/shell/browser/shell_extension_web_contents_observer.h
deleted file mode 100644
index aa703ebaeead4c051836718b9591594077943a19..0000000000000000000000000000000000000000
--- a/apps/shell/browser/shell_extension_web_contents_observer.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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 APPS_SHELL_BROWSER_SHELL_EXTENSION_WEB_CONTENTS_OBSERVER_H_
-#define APPS_SHELL_BROWSER_SHELL_EXTENSION_WEB_CONTENTS_OBSERVER_H_
-
-#include "content/public/browser/web_contents_user_data.h"
-#include "extensions/browser/extension_web_contents_observer.h"
-
-namespace extensions {
-
-// The app_shell version of ExtensionWebContentsObserver.
-class ShellExtensionWebContentsObserver
-    : public ExtensionWebContentsObserver,
-      public content::WebContentsUserData<ShellExtensionWebContentsObserver> {
- private:
-  friend class content::WebContentsUserData<ShellExtensionWebContentsObserver>;
-
-  explicit ShellExtensionWebContentsObserver(
-      content::WebContents* web_contents);
-  virtual ~ShellExtensionWebContentsObserver();
-
-  DISALLOW_COPY_AND_ASSIGN(ShellExtensionWebContentsObserver);
-};
-
-}  // namespace extensions
-
-#endif  // APPS_SHELL_BROWSER_SHELL_EXTENSION_WEB_CONTENTS_OBSERVER_H_