Implement the infrastructure of creating WorkerFetchContext in worker global scope.

third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp

Index: third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp b/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
index 9f0e0963d6edaa02f0cde45b4c88bd069791d8ba..9a6e0dade583d49d199152558f26ad2865339e4e 100644
--- a/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
+++ b/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
@@ -37,6 +37,7 @@
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/ThreadableLoadingContext.h"
+#include "core/loader/WorkerFetchContext.h"
 #include "core/probe/CoreProbes.h"
 #include "core/workers/ParentFrameTaskRunners.h"
 #include "core/workers/SharedWorkerGlobalScope.h"
@@ -339,6 +340,17 @@ void WebSharedWorkerImpl::OnScriptLoaderFinished() {
           web_security_origin)));
   ProvideIndexedDBClientToWorker(worker_clients,
                                  IndexedDBClientImpl::Create(*worker_clients));
+
+  std::unique_ptr<WebWorkerFetchContext> web_worker_fetch_context =

[nhiroki, 2017/04/18 07:56:41]

ditto.

[horo, 2017/04/18 12:53:34]

Done.

+      Platform::Current()->CreateWorkerFetchContext();
+  // |web_worker_fetch_context| is null if off-main-thread-fetch is disabled.
+  if (web_worker_fetch_context) {
+    // TODO(horo): Set more information about the context (ex: Service Worker
+    // provider ID) to |web_worker_fetch_context|.
+    ProvideWorkerFetchContextToWorker(worker_clients,
+                                      std::move(web_worker_fetch_context));
+  }
+
   ContentSecurityPolicy* content_security_policy =
       main_script_loader_->ReleaseContentSecurityPolicy();
   WorkerThreadStartMode start_mode =