Grant origins engagement for having interactions on their notifications.

chrome/android/java/src/org/chromium/chrome/browser/engagement/SiteEngagementService.java

 // 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.
 
 package org.chromium.chrome.browser.engagement;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.annotations.CalledByNative;
 
 import org.chromium.chrome.browser.profiles.Profile;
@@ skipping 31 matching lines @@
     /**
      * Sets the provided URL to have the provided engagement score.
      * Must be called on the UI thread.
      */
     public void resetBaseScoreForUrl(String url, double score) {
         assert ThreadUtils.runningOnUiThread();
         if (mNativePointer == 0) return;
         nativeResetBaseScoreForURL(mNativePointer, url, score);
     }
 
+    /**
+     * Sets site engagement param values to constants for testing.
+     */
+    public static void setParamValuesForTesting() {
+        nativeSetParamValuesForTesting();
+    }
+
     @CalledByNative
     private static SiteEngagementService create(long nativePointer) {
         return new SiteEngagementService(nativePointer);
     }
 
     /** This object may only be created via the static getForProfile method. */
     private SiteEngagementService(long nativePointer) {
         mNativePointer = nativePointer;
     }
 
     @CalledByNative
     private void onNativeDestroyed() {
         mNativePointer = 0;
     }
 
     private static native SiteEngagementService nativeSiteEngagementServiceForProfile(
             Profile profile);
+    private static native void nativeSetParamValuesForTesting();
     private native double nativeGetScore(long nativeSiteEngagementServiceAndroid, String url);
     private native void nativeResetBaseScoreForURL(
             long nativeSiteEngagementServiceAndroid, String url, double score);
 }