Trying to get DataResource reverted so that we don't have to worry ab…

…out this blowing up while we're breaking things out. DataResource should be on a branch until it's ready!

framework/src/org/apache/cordova/FileUtils.java

@@ -949,7 +949,7 @@ public void run() {
                             result = new PluginResult(PluginResult.Status.OK, bytes, true);
                             break;
                         default: // Base64.
-                            String contentType = dataResource.getMimeType();
+                            String contentType = FileHelper.getMimeType(filename, cordova);
                             byte[] base64 = Base64.encode(bytes, Base64.DEFAULT);
                             String s = "data:" + contentType + ";base64," + new String(base64, "US-ASCII");
                             result = new PluginResult(PluginResult.Status.OK, s);