Log site engagement scores for permission actions

chrome/browser/permissions/permission_request.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_PERMISSIONS_PERMISSION_REQUEST_H_
 #define CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_H_
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "components/content_settings/core/common/content_settings_types.h"
@@ skipping 94 matching lines @@
   // The UI this request was associated with was answered by the user.
   // It is safe for the request to be deleted at this point -- it will receive
   // no further message from the permission request system. This method will
   // eventually be called on every request which is not unregistered.
   virtual void RequestFinished() = 0;
 
   // True if a persistence toggle should be shown in the UI for this request.
   virtual bool ShouldShowPersistenceToggle() const;
 
   // Used to record UMA metrics for permission requests.
-  virtual PermissionRequestType GetPermissionRequestType() const;
+  virtual PermissionRequestType GetPermissionRequestType() const = 0;
 
   // Used to record UMA for whether requests are associated with a user gesture.
   // To keep things simple this metric is only recorded for the most popular
   // request types.
   virtual PermissionRequestGestureType GetGestureType() const;
 
   // Used on Android to determine what Android OS permissions are needed for
   // this permission request.
   virtual ContentSettingsType GetContentSettingsType() const;
 
   void set_persist(bool persist) { persist_ = persist; }
 
  protected:
   bool persist() const { return persist_; }
 
  private:
   // Whether or not the response for this prompt should be persisted.
   bool persist_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionRequest);
 };
 
 #endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_H_