[Password Generation] Update UMA stats for popups per page not per event.

components/autofill/content/renderer/password_generation_agent.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 
 #include <map>
 #include <utility>
 #include <vector>
@@ skipping 89 matching lines @@
   blink::WebInputElement generation_element_;
 
   // If the password field at |generation_element_| contains a generated
   // password.
   bool password_is_generated_;
 
   // True if a password was generated and the user edited it. Used for UMA
   // stats.
   bool password_edited_;
 
+  // True if the generation popup was shown during this navigation. Used to
+  // track UMA stats per page visit rather than per display, since the former
+  // is more interesting.
+  bool generation_popup_shown_;
+
+  // True if the editing popup was shown during this navigation. Used to track
+  // UMA stats per page rather than per display, since the former is more
+  // interesting.
+  bool editing_popup_shown_;
+
   // If this feature is enabled. Controlled by Finch.
   bool enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_