Restart the browsing data counters when the CBD dialog is opened.

chrome/browser/ui/webui/options/clear_browser_data_handler.cc

Index: chrome/browser/ui/webui/options/clear_browser_data_handler.cc
diff --git a/chrome/browser/ui/webui/options/clear_browser_data_handler.cc b/chrome/browser/ui/webui/options/clear_browser_data_handler.cc
index 5648c684337f8200077e72f8ba40e0732f85b416..b37b79a5073c89e94a5744f6ea8ed3cf6764631d 100644
--- a/chrome/browser/ui/webui/options/clear_browser_data_handler.cc
+++ b/chrome/browser/ui/webui/options/clear_browser_data_handler.cc
@@ -97,10 +97,6 @@ void ClearBrowserDataHandler::InitializePage() {
   web_ui()->CallJavascriptFunction("ClearBrowserDataOverlay.setClearing",
                                    base::FundamentalValue(removal_in_progress));
 
-  for (BrowsingDataCounter* counter : counters_) {
-    DCHECK(AreCountersEnabled());
-    counter->Restart();
-  }
   web_ui()->CallJavascriptFunction(
       "ClearBrowserDataOverlay.markInitializationComplete");
 }
@@ -128,6 +124,13 @@ void ClearBrowserDataHandler::UpdateInfoBannerVisibility() {
                                    base::StringValue(text));
 }
 
+void ClearBrowserDataHandler::OnPageOpened(const base::ListValue* value) {
+  for (BrowsingDataCounter* counter : counters_) {
+    DCHECK(AreCountersEnabled());
+    counter->Restart();
+  }
+}
+
 void ClearBrowserDataHandler::GetLocalizedValues(
     base::DictionaryValue* localized_strings) {
   DCHECK(localized_strings);
@@ -193,6 +196,9 @@ void ClearBrowserDataHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback("performClearBrowserData",
       base::Bind(&ClearBrowserDataHandler::HandleClearBrowserData,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("openedClearBrowserData",
+      base::Bind(&ClearBrowserDataHandler::OnPageOpened,
+                 base::Unretained(this)));
 }
 
 void ClearBrowserDataHandler::HandleClearBrowserData(