Pass data saver pref value into embedded worker

content/browser/service_worker/embedded_worker_instance.cc

Index: content/browser/service_worker/embedded_worker_instance.cc
diff --git a/content/browser/service_worker/embedded_worker_instance.cc b/content/browser/service_worker/embedded_worker_instance.cc
index 25a9751a2134ab42b6447ded766032b035d2e840..8c745015fe06a230cfe0fc0698fe9abc7d68396f 100644
--- a/content/browser/service_worker/embedded_worker_instance.cc
+++ b/content/browser/service_worker/embedded_worker_instance.cc
@@ -17,6 +17,7 @@
 #include "content/common/content_switches_internal.h"
 #include "content/common/mojo/service_registry_impl.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
+#include "content/common/service_worker/embedded_worker_settings.h"
 #include "content/common/service_worker/embedded_worker_setup.mojom.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/browser/browser_thread.h"
@@ -249,7 +250,8 @@ class EmbeddedWorkerInstance::StartTask {
       scoped_ptr<EmbeddedWorkerMsg_StartWorker_Params> params,
       ServiceWorkerStatusCode status,
       int process_id,
-      bool is_new_process) {
+      bool is_new_process,
+      const EmbeddedWorkerSettings& settings) {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     TRACE_EVENT_ASYNC_END1("ServiceWorker",
                            "EmbeddedWorkerInstance::ProcessAllocate",
@@ -269,6 +271,10 @@ class EmbeddedWorkerInstance::StartTask {
     instance_->OnProcessAllocated(make_scoped_ptr(new WorkerProcessHandle(
         instance_->context_, instance_->embedded_worker_id(), process_id)));
 
+    // TODO(bengr): Support changes to this setting while the worker
+    // is running.
+    params->settings.data_saver_enabled = settings.data_saver_enabled;
+
     // Register the instance to DevToolsManager on UI thread.
     const int64_t service_worker_version_id = params->service_worker_version_id;
     GURL script_url(params->script_url);
@@ -364,7 +370,7 @@ void EmbeddedWorkerInstance::Start(int64_t service_worker_version_id,
   params->script_url = script_url;
   params->worker_devtools_agent_route_id = MSG_ROUTING_NONE;
   params->wait_for_debugger = false;
-  params->v8_cache_options = GetV8CacheOptions();
+  params->settings.v8_cache_options = GetV8CacheOptions();
 
   inflight_start_task_.reset(new StartTask(this));
   inflight_start_task_->Start(std::move(params), callback);