NoIssue - Use localStorage for storing filters in current Windows Store version of ABP for Edge

lib/adblockplus.js

Index: lib/adblockplus.js
===================================================================
--- a/lib/adblockplus.js
+++ b/lib/adblockplus.js
@@ -360,27 +360,44 @@
   function loadFile(file, successCallback, errorCallback)
   {
     var key = fileToKey(file);
-    ext.storage.get([key], function(items)
-    {
-      var entry = items[key];
-      if (entry)
-      {
-        successCallback(entry);
-      }
-      else
-      {
-        errorCallback(new Error("File doesn't exist"));
-      }
-    });
+    var entry = localStorage.getItem(key);
+    if (entry)
+    {
+      successCallback(JSON.parse(entry));
+    }
+    else
+    {
+      // Also check the chrome.storage.local
+      // We may have a init data there
+      ext.storage.get([key], function(items)
+      {
+        var entry = items[key];
+        if (entry)
+          successCallback(entry);
+        else
+          errorCallback(new Error("File doesn't exist"));
+      });
+    }
   }
-
   function saveFile(file, data, callback)
   {
-    ext.storage.set(fileToKey(file),
-    {
-      content: data,
-      lastModified: Date.now()
-    }, callback);
+    try
+    {
+      localStorage.setItem(fileToKey(file), JSON.stringify({
+        content: data,
+        lastModified: Date.now()
+      }));
+    }
+    catch(error)
+    {
+      // QuotaExceededError can happen. Notify the user and ignore
+      var errorMessage = "Subscription storage is full. " + 
+        "Please remove some subscriptions and try again.";
+      alert(errorMessage);
+      callback(new Error(errorMessage));
+      return;
+    }
+    callback();
   }
   exports.IO = {
     resolveFilePath: function(path)