Show a warning to people having a corrupted file storage

firstRun.js

Index: firstRun.js
===================================================================
--- a/firstRun.js
+++ b/firstRun.js
@@ -94,21 +94,26 @@ function init()
   var titleId = (backgroundPage.isFirstRun ? "firstRun_title_install" : "firstRun_title_update");
   var pageTitle = i18n.getMessage(titleId);
   document.title = document.getElementById("title-main").textContent = pageTitle;
 
   // Only show changelog link on the update page
   if (backgroundPage.isFirstRun)
     document.getElementById("title-changelog").style.display = "none";
 
+  // Show warning if data corruption was detected
+  if (backgroundPage.seenDataCorruption)
+    document.getElementById("dataCorruptionWarning").removeAttribute("hidden");
+
   // Set up URLs
   var versionId = chrome.app.getDetails().version.split(".").slice(0, 2).join("");
   setLinks("title-changelog", "https://adblockplus.org/releases/adblock-plus-" + versionId + "-for-google-chrome-released");
   setLinks("acceptableAdsExplanation", getDocLink("acceptable_ads", "criteria"),
       backgroundPage.openOptions);
+  setLinks("dataCorruptionWarning", getDocLink("knownIssuesChrome_filterstorage"));
 
   initSocialLinks(variant);
 
   var donateLink = document.getElementById("share-donate");
   donateLink.href = getDocLink("donate") + "&variant=" + variant;
 }
 window.addEventListener("load", init, false);