service worker: Implement NavigationPreloadManager.setHeaderValue

content/browser/service_worker/service_worker_registration.cc

Index: content/browser/service_worker/service_worker_registration.cc
diff --git a/content/browser/service_worker/service_worker_registration.cc b/content/browser/service_worker/service_worker_registration.cc
index aed07474996b3601dcb782ba9e479adbf713c70c..ac685108ec38fa16bc05a16eb9305ea225dc1e11 100644
--- a/content/browser/service_worker/service_worker_registration.cc
+++ b/content/browser/service_worker/service_worker_registration.cc
@@ -38,7 +38,6 @@ ServiceWorkerRegistration::ServiceWorkerRegistration(
       is_uninstalling_(false),
       is_uninstalled_(false),
       should_activate_when_ready_(false),
-      is_navigation_preload_enabled_(false),
       resources_total_size_bytes_(0),
       context_(context),
       task_runner_(base::ThreadTaskRunnerHandle::Get()) {
@@ -123,8 +122,7 @@ void ServiceWorkerRegistration::SetActiveVersion(
   active_version_ = version;
   if (active_version_) {
     active_version_->AddListener(this);
-    active_version_->set_navigation_preload_enabled(
-        is_navigation_preload_enabled_);
+    active_version_->SetNavigationPreloadState(navigation_preload_state_);
   }
   mask.add(ChangedVersionAttributesMask::ACTIVE_VERSION);
 
@@ -399,11 +397,20 @@ void ServiceWorkerRegistration::SetTaskRunnerForTest(
 }
 
 void ServiceWorkerRegistration::EnableNavigationPreload(bool enable) {
-  if (is_navigation_preload_enabled_ == enable)
+  if (navigation_preload_state_.enabled == enable)
     return;
-  is_navigation_preload_enabled_ = enable;
+  navigation_preload_state_.enabled = enable;
   if (active_version_)
-    active_version_->set_navigation_preload_enabled(enable);
+    active_version_->SetNavigationPreloadState(navigation_preload_state_);
+}
+
+void ServiceWorkerRegistration::SetNavigationPreloadHeader(
+    const std::string& header) {
+  if (navigation_preload_state_.header == header)
+    return;
+  navigation_preload_state_.header = header;
+  if (active_version_)
+    active_version_->SetNavigationPreloadState(navigation_preload_state_);
 }
 
 void ServiceWorkerRegistration::RegisterRegistrationFinishedCallback(