added a headlessresourcedispatcherhostdelegate so that we do not crash when a website requests a cl…

headless/lib/browser/headless_content_browser_client.cc

 // Copyright 2015 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 "headless/lib/browser/headless_content_browser_client.h"
 
 #include <memory>
 #include <unordered_set>
 
 #include "base/base_switches.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
+#include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/service_names.mojom.h"
 #include "headless/app/headless_shell_switches.h"
 #include "headless/grit/headless_lib_resources.h"
 #include "headless/lib/browser/headless_browser_context_impl.h"
 #include "headless/lib/browser/headless_browser_impl.h"
 #include "headless/lib/browser/headless_browser_main_parts.h"
 #include "headless/lib/browser/headless_devtools_manager_delegate.h"
 #include "headless/lib/headless_macros.h"
@@ skipping 166 matching lines @@
         switches::kUserAgent,
         old_command_line.GetSwitchValueNative(switches::kUserAgent));
   }
 #if defined(HEADLESS_USE_BREAKPAD)
   // This flag tells child processes to also turn on crash reporting.
   if (breakpad::IsCrashReporterEnabled())
     command_line->AppendSwitch(::switches::kEnableCrashReporter);
 #endif  // defined(HEADLESS_USE_BREAKPAD)
 }
 
+void HeadlessContentBrowserClient::ResourceDispatcherHostCreated() {
+  resource_dispatcher_host_delegate_.reset(
+      new HeadlessResourceDispatcherHostDelegate);
+  content::ResourceDispatcherHost::Get()->SetDelegate(
+      resource_dispatcher_host_delegate_.get());
+}
+
 }  // namespace headless