[wip] Respect the clipboardRead and clipboardWrite permissions in content scripts.

chrome/renderer/content_settings_observer.h

 // Copyright (c) 2012 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_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
 #define CHROME_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
 
 #include <map>
 #include <set>
 
@@ skipping 93 matching lines @@
   void ClearBlockedContentSettings();
 
   // Whether the observed RenderFrame is for a platform app.
   bool IsPlatformApp();
 
 #if defined(ENABLE_EXTENSIONS)
   // If |origin| corresponds to an installed extension, returns that extension.
   // Otherwise returns NULL.
   const extensions::Extension* GetExtension(
       const blink::WebSecurityOrigin& origin) const;
-
 #endif
 
   // Helpers.
   // True if |frame| contains content that is white-listed for content settings.
   static bool IsWhitelistedForContentSettings(content::RenderFrame* frame);
   static bool IsWhitelistedForContentSettings(
       const blink::WebSecurityOrigin& origin,
       const GURL& document_url);
 
 #if defined(ENABLE_EXTENSIONS)
@@ skipping 26 matching lines @@
   bool npapi_plugins_blocked_;
 
   int current_request_id_;
   typedef std::map<int, blink::WebPermissionCallbacks> PermissionRequestMap;
   PermissionRequestMap permission_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSettingsObserver);
 };
 
 #endif  // CHROME_RENDERER_CONTENT_SETTINGS_OBSERVER_H_