Disable pushState and the rest of the history API in packaged apps via runtime-enabled features

chrome/renderer/chrome_render_view_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_CHROME_RENDER_VIEW_OBSERVER_H_
 #define CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 95 matching lines @@
   virtual bool allowStorage(WebKit::WebFrame* frame, bool local) OVERRIDE;
   virtual bool allowReadFromClipboard(WebKit::WebFrame* frame,
                                       bool default_value) OVERRIDE;
   virtual bool allowWriteToClipboard(WebKit::WebFrame* frame,
                                      bool default_value) OVERRIDE;
   virtual bool allowWebComponents(const WebKit::WebDocument&, bool) OVERRIDE;
   virtual bool allowHTMLNotifications(
       const WebKit::WebDocument& document) OVERRIDE;
   virtual bool allowMutationEvents(const WebKit::WebDocument&,
                                    bool default_value) OVERRIDE;
+  virtual bool allowPushState(const WebKit::WebDocument&) OVERRIDE;
   virtual void didNotAllowPlugins(WebKit::WebFrame* frame) OVERRIDE;
   virtual void didNotAllowScript(WebKit::WebFrame* frame) OVERRIDE;
   virtual bool allowDisplayingInsecureContent(
       WebKit::WebFrame* frame,
       bool allowed_per_settings,
       const WebKit::WebSecurityOrigin& context,
       const WebKit::WebURL& url) OVERRIDE;
   virtual bool allowRunningInsecureContent(
       WebKit::WebFrame* frame,
       bool allowed_per_settings,
@@ skipping 102 matching lines @@
   // A color page overlay when visually de-emaphasized.
   scoped_ptr<WebViewColorOverlay> dimmed_color_overlay_;
 
   // Used to delay calling CapturePageInfo.
   base::Timer capture_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeRenderViewObserver);
 };
 
 #endif  // CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_