Split part of about_handler into chrome/common to break the browser-renderer ...

chrome/renderer/renderer_about_handler_unittest.cc

+// Copyright (c) 2010 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/common/about_handler.h"
+#include "chrome/renderer/about_handler.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// This is just to make sure the about_urls array in
+// chrome/common/about_handler.cc matches up with the about_urls_handlers
+// in chrome/renderer/about_handler.cc. They used to be in one array, but
+// we broke them apart to break a browser <-> renderer dependency.
+// We cannot test this with COMPILE_ASSERT because
+// chrome/renderer/about_handler.cc doesn't know about the size of about_urls
+// in chrome/common/about_handler.cc at compile time.
+
+TEST(RendererAboutHandlerTest, AboutUrlHandlerArray) {
+  ASSERT_EQ(chrome_about_handler::about_urls_size,
+            AboutHandler::AboutURLHandlerSize());
+}