Count number of origins with data affected by clearing "cookies and site data".

chrome/browser/resources/options/clear_browser_data_overlay.html

Index: chrome/browser/resources/options/clear_browser_data_overlay.html
diff --git a/chrome/browser/resources/options/clear_browser_data_overlay.html b/chrome/browser/resources/options/clear_browser_data_overlay.html
index a36ef9069db4675ecd35a41f412678e49c0c35dd..303a73c2619208d7af08a2a87841b0d9702046cf 100644
--- a/chrome/browser/resources/options/clear_browser_data_overlay.html
+++ b/chrome/browser/resources/options/clear_browser_data_overlay.html
@@ -40,11 +40,16 @@
       <div id="delete-cookies-container" class="checkbox">
         <label>
           <input id="delete-cookies-checkbox"
-              pref="browser.clear_data.cookies" type="checkbox">
+              pref="browser.clear_data.cookies" type="checkbox"
+              aria-controls="delete-cookies-counter">

[msramek, 2017/01/09 12:54:44]

I don't think it was the right decision, but anyways - we decided not to add the
new counters to options/, only to settings/.

[dullweber, 2017/01/09 16:05:46]

Ok, I reverted this

           <span i18n-content="deleteCookiesFlashCheckbox"
               class="clear-plugin-lso-data-enabled"></span>
-          <span i18n-content="deleteCookiesCheckbox"
-              class="clear-plugin-lso-data-disabled"></span>
+          <span>
+            <span i18n-content="deleteCookiesCheckbox"
+                class="clear-plugin-lso-data-disabled"></span>
+            <span class="clear-browser-data-counter" role="note"
+                aria-live="polite" id="delete-cookies-counter"></span>
+          </span>
         </label>
       </div>
       <div id="delete-cache-container" class="checkbox">