[PwdCheckAndroid] Update status on compromised credentials change

This CL add the update of the status header if the compromised
credentials shown have been updated.

Bug: 1117543, 1092444
Change-Id: I8dbf4210385bfc3c0842c55b65913fe15be1e3e0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2366725
Commit-Queue: Eleonora Rocchi <erocchi@google.com>
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800204}

chrome/browser/password_check/android/internal/java/src/org/chromium/chrome/browser/password_check/PasswordCheckMediator.java

@@ -97,6 +97,7 @@ class PasswordCheckMediator
         }
         if (items.size() > 1) items.removeRange(1, items.size() - 1);
 
+        updateStatusHeaderWhenCredentialsChange();
         for (CompromisedCredential credential : credentialsList) {
             items.add(createEntryForCredential(credential));
         }
@@ -158,6 +159,7 @@ class PasswordCheckMediator
         assert leakedCredential != null;
         ListModel<ListItem> items = mModel.get(ITEMS);
         assert items.size() >= 1 : "Needs to initialize list with header before adding items!";
+        updateStatusHeaderWhenCredentialsChange();
         items.add(createEntryForCredential(leakedCredential));
     }
 
@@ -230,6 +232,17 @@ class PasswordCheckMediator
         mChangePasswordDelegate.launchCctWithScript(credential);
     }
 
+    private void updateStatusHeaderWhenCredentialsChange() {
+        ListModel<ListItem> items = mModel.get(ITEMS);
+        assert items.size() >= 1;
+
+        PropertyModel header = items.get(0).model;
+        if (header.get(CHECK_STATUS) == PasswordCheckUIStatus.IDLE) {
+            header.set(COMPROMISED_CREDENTIALS_COUNT,
+                    Integer.valueOf(getPasswordCheck().getCompromisedCredentialsCount()));
+        }
+    }
+
     private void runCheck() {
         getPasswordCheck().startCheck();
     }