Add IPC stubs between browser and ServiceWorker's worker context in the child process

content/browser/service_worker/embedded_worker_instance.h

Index: content/browser/service_worker/embedded_worker_instance.h
diff --git a/content/browser/service_worker/embedded_worker_instance.h b/content/browser/service_worker/embedded_worker_instance.h
index fb0fe19bb6cff3b6b4a566dc96d1c789df62dc56..5a992a2d4ff7528f0793fb1f0878b7cb553871c7 100644
--- a/content/browser/service_worker/embedded_worker_instance.h
+++ b/content/browser/service_worker/embedded_worker_instance.h
@@ -19,6 +19,7 @@ class GURL;
 namespace content {
 
 class EmbeddedWorkerRegistry;
+struct ServiceWorkerFetchRequest;
 
 // This gives an interface to control one EmbeddedWorker instance, which
 // may be 'in-waiting' or running in one of the child processes added by
@@ -47,6 +48,11 @@ class CONTENT_EXPORT EmbeddedWorkerInstance {
   // IPC couldn't be sent to the worker.
   bool Stop();
 
+  // Sends |request| to the embedded worker running in the child process.
+  // This returns false if sending IPC fails.
+  // It is invalid to call this while the worker is not in RUNNING status.
+  bool SendFetchRequest(const ServiceWorkerFetchRequest& request);
+
   // Add or remove |process_id| to the internal process set where this
   // worker can be started.
   void AddProcessReference(int process_id);