Headless: make URLRequestDispatcher aware of navigations

headless/public/util/expedited_dispatcher.cc

Index: headless/public/util/expedited_dispatcher.cc
diff --git a/headless/public/util/expedited_dispatcher.cc b/headless/public/util/expedited_dispatcher.cc
index 0120442dd0ec4ac04aeecc969faf1d4e55b11bdc..649321a7ad04c318edf80cd1538b33f27d398c54 100644
--- a/headless/public/util/expedited_dispatcher.cc
+++ b/headless/public/util/expedited_dispatcher.cc
@@ -8,6 +8,7 @@
 
 #include "base/bind.h"
 #include "headless/public/util/managed_dispatch_url_request_job.h"
+#include "headless/public/util/navigation_request.h"
 
 namespace headless {
 
@@ -36,4 +37,13 @@ void ExpeditedDispatcher::DataReady(ManagedDispatchURLRequestJob* job) {
 
 void ExpeditedDispatcher::JobDeleted(ManagedDispatchURLRequestJob*) {}
 
+void ExpeditedDispatcher::NavigationRequested(
+    std::unique_ptr<NavigationRequest> navigation) {
+  // For the ExpeditedDispatcher we don't care when the navigation is done,
+  // hence the empty closure.
+  io_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&NavigationRequest::StartProcessing,
+                            std::move(navigation), base::Closure()));
+}
+
 }  // namespace headless