Teach EmbeddedWorkerInstance to create a process when it needs one.

content/browser/service_worker/service_worker_storage_unittest.cc

Index: content/browser/service_worker/service_worker_storage_unittest.cc
diff --git a/content/browser/service_worker/service_worker_storage_unittest.cc b/content/browser/service_worker/service_worker_storage_unittest.cc
index ed2268ab4def98ed50070a7df275f91685b24f6b..80ee8afd1b1d39ac17ec7724eb81e438ca702e1e 100644
--- a/content/browser/service_worker/service_worker_storage_unittest.cc
+++ b/content/browser/service_worker/service_worker_storage_unittest.cc
@@ -72,7 +72,11 @@ class ServiceWorkerStorageTest : public testing::Test {
   }
 
   virtual void SetUp() OVERRIDE {
-    context_.reset(new ServiceWorkerContextCore(base::FilePath(), NULL, NULL));
+    context_.reset(new ServiceWorkerContextCore(
+        base::FilePath(),
+        NULL,
+        NULL,
+        scoped_ptr<ServiceWorkerProcessManager>()));
     context_ptr_ = context_->AsWeakPtr();
     storage()->simulated_lazy_initted_ = true;
   }