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

headless/lib/browser/headless_content_browser_client.cc

Index: headless/lib/browser/headless_content_browser_client.cc
diff --git a/headless/lib/browser/headless_content_browser_client.cc b/headless/lib/browser/headless_content_browser_client.cc
index 9d0dde7952b36c3c786425f67356fc0918bca43d..1e19a500f82c4fb788deca19dc9d65e5399e3162 100644
--- a/headless/lib/browser/headless_content_browser_client.cc
+++ b/headless/lib/browser/headless_content_browser_client.cc
@@ -17,6 +17,7 @@
 #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"
@@ -203,4 +204,11 @@ void HeadlessContentBrowserClient::AppendExtraCommandLineSwitches(
 #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