Plumb site engagement to the renderer process.

chrome/browser/engagement/site_engagement_score.h

 // Copyright 2016 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_ENGAGEMENT_SITE_ENGAGEMENT_SCORE_H_
 #define CHROME_BROWSER_ENGAGEMENT_SITE_ENGAGEMENT_SCORE_H_
 
 #include <array>
 #include <memory>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "base/values.h"
+#include "third_party/WebKit/public/platform/site_engagement.mojom.h"
 #include "url/gurl.h"
 
 namespace base {
 class Clock;
 }
 
 class HostContentSettingsMap;
 
 class SiteEngagementScore {
  public:
@@ skipping 97 matching lines @@
 
   // Adds |points| to this score, respecting daily limits and the maximum
   // possible score. Decays the score if it has not been updated recently
   // enough.
   void AddPoints(double points);
   double GetScore() const;
 
   // Writes the values in this score into |settings_map_|.
   void Commit();
 
+  // Returns the discrete engagement level for this score.
+  blink::mojom::EngagementLevel GetEngagementLevel() const;
+
   // Returns true if the maximum number of points today has been added.
   bool MaxPointsPerDayAdded() const;
 
   // Resets the score to |points| and resets the daily point limit. If
   // |updated_time| is non-null, sets the last engagement time to that value.
   void Reset(double points, const base::Time updated_time);
 
   // Get/set the last time this origin was launched from an installed shortcut.
   base::Time last_shortcut_launch_time() const {
     return last_shortcut_launch_time_;
@@ skipping 79 matching lines @@
   // The origin this score represents.
   GURL origin_;
 
   // The settings to write this score to when Commit() is called.
   HostContentSettingsMap* settings_map_;
 
   DISALLOW_COPY_AND_ASSIGN(SiteEngagementScore);
 };
 
 #endif  // CHROME_BROWSER_ENGAGEMENT_SITE_ENGAGEMENT_SCORE_H_