Logs different SaveCardPrompt histogram names depending on if user

chrome/browser/ui/autofill/save_card_bubble_controller_impl.h

 // Copyright 2015 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_AUTOFILL_SAVE_CARD_BUBBLE_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_SAVE_CARD_BUBBLE_CONTROLLER_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/timer/elapsed_timer.h"
 #include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/ui/save_card_bubble_controller.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 
+class PrefService;
+
 namespace autofill {
 
 // Implementation of per-tab class to control the save credit card bubble and
 // Omnibox icon.
 class SaveCardBubbleControllerImpl
     : public SaveCardBubbleController,
       public content::WebContentsObserver,
       public content::WebContentsUserData<SaveCardBubbleControllerImpl> {
  public:
   // Sets up the controller for local save and shows the bubble.
@@ skipping 59 matching lines @@
   void ShowBubble();
 
   // Update the visibility and toggled state of the Omnibox save card icon.
   void UpdateIcon();
 
   void OpenUrl(const GURL& url);
 
   // Weak reference. Will be nullptr if no bubble is currently shown.
   SaveCardBubbleView* save_card_bubble_view_;
 
+  // Weak reference to read & write |kAutofillAcceptSaveCreditCardPromptState|.
+  PrefService* pref_service_;
+
   // Callback to run if user presses Save button in the bubble.
   // If save_card_callback_.is_null() is true then no bubble is available to
   // show and the icon is not visible.
   base::Closure save_card_callback_;
 
   // Governs whether the upload or local save version of the UI should be shown.
   bool is_uploading_{false};
 
   // Whether ReshowBubble() has been called since ShowBubbleFor*() was called.
   bool is_reshow_{false};
@@ skipping 13 matching lines @@
   // Used to measure the amount of time on a page; if it's less than some
   // reasonable limit, then don't close the bubble upon navigation.
   std::unique_ptr<base::ElapsedTimer> timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SaveCardBubbleControllerImpl);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_SAVE_CARD_BUBBLE_CONTROLLER_IMPL_H_