Make the id used in IconMsg_DownloadFavicon unique

chrome/browser/favicon/favicon_util.cc

Index: chrome/browser/favicon/favicon_util.cc
diff --git a/chrome/browser/favicon/favicon_util.cc b/chrome/browser/favicon/favicon_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..737b15f30d305624d5076fa38d4419ec2df1a392
--- /dev/null
+++ b/chrome/browser/favicon/favicon_util.cc
@@ -0,0 +1,19 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/favicon/favicon_util.h"
+
+#include "chrome/common/icon_messages.h"
+#include "content/public/browser/render_view_host.h"
+#include "googleurl/src/gurl.h"
+
+// static
+int FaviconUtil::DownloadFavicon(content::RenderViewHost* rvh,
+                                 GURL url,
+                                 int image_size) {
+  static int id = 0;
+  rvh->Send(new IconMsg_DownloadFavicon(rvh->GetRoutingID(), ++id, url,
+            image_size));
+  return id;
+}