Support dispatching ServiceWorker FetchEvent and receiving response

content/renderer/service_worker/embedded_worker_context_client.cc

Index: content/renderer/service_worker/embedded_worker_context_client.cc
diff --git a/content/renderer/service_worker/embedded_worker_context_client.cc b/content/renderer/service_worker/embedded_worker_context_client.cc
index 6481ae42e3ec426b44c508d77ea3ea986d96cbf4..134891eb1dde795a31c7c3e0eace84b091d47dca 100644
--- a/content/renderer/service_worker/embedded_worker_context_client.cc
+++ b/content/renderer/service_worker/embedded_worker_context_client.cc
@@ -12,6 +12,7 @@
 #include "content/child/worker_task_runner.h"
 #include "content/child/worker_thread_task_runner.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
+#include "content/common/service_worker/service_worker_types.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/service_worker/embedded_worker_dispatcher.h"
 #include "content/renderer/service_worker/service_worker_script_context.h"
@@ -125,7 +126,18 @@ void EmbeddedWorkerContextClient::didHandleInstallEvent(int request_id) {
 
 void EmbeddedWorkerContextClient::didHandleFetchEvent(int request_id) {
   DCHECK(script_context_);
-  NOTIMPLEMENTED();
+  script_context_->DidHandleFetchEvent(request_id,
+                                       SERVICE_WORKER_FETCH_RESULT_FALLBACK,
+                                       ServiceWorkerResponse());
+}
+
+void EmbeddedWorkerContextClient::didHandleFetchEvent(
+    int request_id,
+    const blink::WebServiceWorkerResponse& web_response) {
+  DCHECK(script_context_);
+  script_context_->DidHandleFetchEvent(request_id,
+                                       SERVICE_WORKER_FETCH_RESULT_RESPONSE,
+                                       ServiceWorkerResponse(web_response));
 }
 
 void EmbeddedWorkerContextClient::OnSendMessageToWorker(