content: Extract url utility functions into url_utils.{h,cc}

content/browser/site_instance_impl_unittest.cc

 // 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 "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_vector.h"
 #include "base/string16.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/browsing_instance.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/browser/web_contents/navigation_entry_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/webui/web_ui_controller_factory_registry.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/common/url_utils.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread.h"
 #include "content/test/test_content_browser_client.h"
 #include "content/test/test_content_client.h"
 #include "googleurl/src/url_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 namespace {
@@ skipping 719 matching lines @@
   EXPECT_TRUE(instance->GetSiteURL().is_empty());
   host.reset(instance->GetProcess());
 
   EXPECT_FALSE(RenderProcessHostImpl::GetProcessHostForSite(
       browser_context.get(), GURL()));
 
   DrainMessageLoops();
 }
 
 }  // namespace content