Fix the extension activity log UI.

chrome/browser/resources/extensions/extension_list.js

Index: chrome/browser/resources/extensions/extension_list.js
diff --git a/chrome/browser/resources/extensions/extension_list.js b/chrome/browser/resources/extensions/extension_list.js
index 01dc1177aebfa3531f5e6e3c62410d045d7788d6..a6139ee735f89079162914ef1616eaaa2c7976f0 100644
--- a/chrome/browser/resources/extensions/extension_list.js
+++ b/chrome/browser/resources/extensions/extension_list.js
@@ -132,8 +132,10 @@ cr.define('options', function() {
 
       if (extension.allow_activity) {
         var activity = node.querySelector('.activity-link');
-        activity.href = 'chrome://extension-activity?extensionId=' +
-            extension.id;
+        activity.addEventListener('click', function(e) {
+          chrome.send('extensionSettingsActivity', [extension.id]);
+          e.preventDefault();
+        });
         activity.hidden = false;
       }