Add a feature-controlled persistence checkbox to geolocation prompts on desktop Views platforms.

chrome/browser/ui/website_settings/permission_prompt.h

 // 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 CHROME_BROWSER_UI_WEBSITE_SETTINGS_PERMISSION_PROMPT_H_
 #define CHROME_BROWSER_UI_WEBSITE_SETTINGS_PERMISSION_PROMPT_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 10 matching lines @@
 // to the manager for the visible tab.
 class PermissionPrompt {
  public:
   // The delegate will receive events caused by user action which need to
   // be persisted in the per-tab UI state.
   class Delegate {
    public:
     virtual ~Delegate() {}
 
     virtual void ToggleAccept(int index, bool new_value) = 0;
+    virtual void TogglePersist(bool new_value) = 0;
     virtual void Accept() = 0;
     virtual void Deny() = 0;
     virtual void Closing() = 0;
   };
 
   typedef base::Callback<std::unique_ptr<PermissionPrompt>(Browser*)> Factory;
 
   // Create a platform specific instance.
   static std::unique_ptr<PermissionPrompt> Create(Browser* browser);
   virtual ~PermissionPrompt() {}
@@ skipping 23 matching lines @@
 
   // Updates where the prompt should be anchored. ex: fullscreen toggle.
   virtual void UpdateAnchorPosition() = 0;
 
   // Returns a reference to this prompt's native window.
   // TODO(hcarmona): Remove this as part of the bubble API work.
   virtual gfx::NativeWindow GetNativeWindow() = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_WEBSITE_SETTINGS_PERMISSION_PROMPT_H_