Restart counters when the MD CBD dialog is reopened.

chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 237 matching lines @@
   AllowJavascript();
   const base::Value* callback_id;
   CHECK(args->Get(0, &callback_id));
 
   // Needed because WebUI doesn't handle renderer crashes. See crbug.com/610450.
   task_observer_.reset();
 
   OnStateChanged();
   RefreshHistoryNotice();
 
+  // Restart the counters each time the dialog is reopened.
+  for (const auto& counter : counters_)
+    counter->Restart();
+
   ResolveJavascriptCallback(
       *callback_id,
       *base::Value::CreateNullValue() /* Promise<void> */);
 }
 
 void ClearBrowsingDataHandler::OnStateChanged() {
   CallJavascriptFunction(
       "cr.webUIListenerCallback",
       base::StringValue("update-footer"),
       base::FundamentalValue(sync_service_ && sync_service_->IsSyncActive()),
@@ skipping 35 matching lines @@
 void ClearBrowsingDataHandler::UpdateHistoryDeletionDialog(bool show) {
   // This is used by OnClearingTaskFinished (when the deletion finishes).
   show_history_deletion_dialog_ = show;
 }
 
 void ClearBrowsingDataHandler::AddCounter(
     std::unique_ptr<browsing_data::BrowsingDataCounter> counter) {
   counter->Init(profile_->GetPrefs(),
                 base::Bind(&ClearBrowsingDataHandler::UpdateCounterText,
                            base::Unretained(this)));
-  counter->Restart();
   counters_.push_back(std::move(counter));
 }
 
 void ClearBrowsingDataHandler::UpdateCounterText(
     std::unique_ptr<browsing_data::BrowsingDataCounter::Result> result) {
   CallJavascriptFunction(
       "cr.webUIListenerCallback",
       base::StringValue("update-counter-text"),
       base::StringValue(result->source()->GetPrefName()),
       base::StringValue(GetChromeCounterTextFromResult(result.get())));
 }
 
 }  // namespace settings