Add base and bonus scores to site-engagement WebUI.

chrome/browser/resources/engagement/site_engagement.html

Index: chrome/browser/resources/engagement/site_engagement.html
diff --git a/chrome/browser/resources/engagement/site_engagement.html b/chrome/browser/resources/engagement/site_engagement.html
index 9a7f960ddde6da6a86735a582f428cd2f4f9b4b0..7e2518f9a752438e912d47de4f1f2ed85adcb406 100644
--- a/chrome/browser/resources/engagement/site_engagement.html
+++ b/chrome/browser/resources/engagement/site_engagement.html
@@ -44,12 +44,14 @@
       min-width: 500px;
     }
 
-    .score-cell {
+    .base-score-cell,
+    .bonus-score-cell,
+    .total-score-cell {
       background-color: rgba(230, 230, 230, 0.5);
       text-align: right;
     }
 
-    .score-input {
+    .base-score-input {
       border: 1px solid #ccc;
       border-radius: 2px;
       text-align: right;
@@ -83,8 +85,14 @@
         <th sort-key="origin">
           Origin
         </th>
+        <th sort-key="base_score" class="sort-column" sort-reverse>
+          Base
+        </th>
+        <th sort-key="bonus_score" class="sort-column" sort-reverse>
+          Bonus
+        </th>
         <th sort-key="total_score" class="sort-column" sort-reverse>
-          Points
+          Total
         </th>
       </tr>
     </thead>