Remove Chrome Frame code and resources.

chrome_frame/navigation_constraints.h

-// Copyright (c) 2011 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_FRAME_NAVIGATION_CONSTRAINTS_H_
-#define CHROME_FRAME_NAVIGATION_CONSTRAINTS_H_
-
-#include <urlmon.h>
-#include <windows.h>
-
-#include "base/win/scoped_comptr.h"
-#include "url/gurl.h"
-
-// Provides an interface which controls navigation within ChromeFrame.
-class NavigationConstraints {
- public:
-  virtual ~NavigationConstraints() {}
-  virtual bool AllowUnsafeUrls() = 0;
-  virtual bool IsSchemeAllowed(const GURL& url) = 0;
-  virtual bool IsZoneAllowed(const GURL& url) = 0;
-};
-
-// Provides default implementation for the NavigationConstraints interface.
-class NavigationConstraintsImpl : public NavigationConstraints {
- public:
-  NavigationConstraintsImpl();
-  virtual ~NavigationConstraintsImpl() {}
-
-  // NavigationConstraints method overrides.
-  virtual bool AllowUnsafeUrls();
-  virtual bool IsSchemeAllowed(const GURL& url);
-  virtual bool IsZoneAllowed(const GURL& url);
-
-  bool is_privileged() const;
-  void set_is_privileged(bool is_privileged);
-
- private:
-  base::win::ScopedComPtr<IInternetSecurityManager> security_manager_;
-
-  // The plugin is privileged if it is:
-  // * Being hosted by a custom host exposing the SID_ChromeFramePrivileged
-  //   service.
-  //
-  // When privileged, additional interfaces are made available to the user.
-  bool is_privileged_;
-};
-
-#endif  // CHROME_FRAME_NAVIGATION_CONSTRAINTS_H_