Use FileSystem API to store data in Opera

lib/filesystem/io.js

Index: lib/filesystem/io.js
===================================================================
--- a/lib/filesystem/io.js
+++ b/lib/filesystem/io.js
@@ -45,16 +45,31 @@ var IO = exports.IO =
 
   resolveFilePath: function(path)
   {
     return new FakeFile(path);
   },
 
   readFromFile: function(file, decode, listener, callback, timeLineID)
   {
+    // Hack to allow importing old data
+    if (typeof file == "string")
+    {
+      var Utils = require("utils").Utils;
+      Utils.runAsync(function()
+      {
+        var lines = file.split(/[\r\n]+/);
+        for (var i = 0; i < lines.length; i++)
+          listener.process(lines[i]);
+        listener.process(null);
+        callback(null);
+      }.bind(this));
+      return;
+    }
+
     if ("spec" in file && /^defaults\b/.test(file.spec))
     {
       // Code attempts to read the default patterns.ini, we don't have that.
       // Make sure to execute first-run actions instead.
       if (localStorage.currentVersion)
         seenDataCorruption = true;
       delete localStorage.currentVersion;
       callback(null);
@@ -164,16 +179,29 @@ var IO = exports.IO =
       {
         callback(null);
       }, callback);
     }, callback);
   },
 
   statFile: function(file, callback)
   {
+    // Hack to allow importing old data
+    if (typeof file == "string")
+    {
+      var Utils = require("utils").Utils;
+      Utils.runAsync(callback.bind(null, null, {
+        exists: true,
+        isDirectory: false,
+        isFile: true,
+        lastModified: 0
+      }));
+      return;
+    }
+
     this._getFileEntry(file, false, function(fs, fileEntry)
     {
       fileEntry.getMetadata(function(metadata)
       {
         callback(null, {
           exists: true,
           isDirectory: fileEntry.isDirectory,
           isFile: fileEntry.isFile,