Get chrome:// dev tool urls hooked up in content_shell.

content/shell/shell_content_client.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 "content/shell/shell_content_client.h"
 
 #include "base/string_piece.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "webkit/glue/user_agent.h"
 
 namespace content {
 
 ShellContentClient::~ShellContentClient() {
 }
 
 void ShellContentClient::SetActiveURL(const GURL& url) {
 }
 
 void ShellContentClient::SetGpuInfo(const GPUInfo& gpu_info) {
 }
 
 void ShellContentClient::AddPepperPlugins(
     std::vector<content::PepperPluginInfo>* plugins) {
 }
 
 void ShellContentClient::AddNPAPIPlugins(
     webkit::npapi::PluginList* plugin_list) {
 }
 
+void ShellContentClient::AddAdditionalSchemes(
+    std::vector<std::string>* standard_schemes,
+    std::vector<std::string>* savable_schemes) {
+}
+
 bool ShellContentClient::HasWebUIScheme(const GURL& url) const {
   // There are no WebUI URLs in content_shell.
   return false;
 }
 
 bool ShellContentClient::CanHandleWhileSwappedOut(const IPC::Message& msg) {
   return false;
 }
 
 std::string ShellContentClient::GetUserAgent() const {
@@ skipping 20 matching lines @@
 
 #if defined(OS_MACOSX)
 bool ShellContentClient::GetSandboxProfileForSandboxType(
     int sandbox_type,
     int* sandbox_profile_resource_id) const {
   return false;
 }
 #endif
 
 }  // namespace content