Add way for PermissionContext to be automatically restricted to secure origins.

chrome/browser/geolocation/geolocation_permission_context.h

 // Copyright 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_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_
 
 #include "base/callback.h"
 #include "chrome/browser/content_settings/permission_context_base.h"
 #include "chrome/browser/geolocation/geolocation_permission_context_extensions.h"
@@ skipping 20 matching lines @@
                          const BrowserPermissionCallback& callback) override;
 
   // Adds special logic when called through an extension.
   void CancelPermissionRequest(content::WebContents* web_contents,
                                const PermissionRequestID& id) override;
 
  private:
   void UpdateTabContext(const PermissionRequestID& id,
                         const GURL& requesting_frame,
                         bool allowed) override;
+  bool RestrictToSecureOrigins() const override;
 
   // This must only be accessed from the UI thread.
   GeolocationPermissionContextExtensions extensions_context_;
 
   DISALLOW_COPY_AND_ASSIGN(GeolocationPermissionContext);
 };
 
 #endif  // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_