ServiceWorker: Make a way to retrieve a service worker version id (Blink)

Source/core/fetch/ResourceFetcher.cpp

Index: Source/core/fetch/ResourceFetcher.cpp
diff --git a/Source/core/fetch/ResourceFetcher.cpp b/Source/core/fetch/ResourceFetcher.cpp
index e6d13535757fe6171ad088c3e2218dda1bcc5d07..44a34832183c859de7db99a5b26220789c968c6b 100644
--- a/Source/core/fetch/ResourceFetcher.cpp
+++ b/Source/core/fetch/ResourceFetcher.cpp
@@ -624,6 +624,16 @@ bool ResourceFetcher::isControlledByServiceWorker() const
     return localFrame->loader().client()->isControlledByServiceWorker(*m_documentLoader);
 }
 
+int64_t ResourceFetcher::serviceWorkerID() const
+{
+    LocalFrame* localFrame = frame();
+    if (!localFrame)
+        return -1;
+    if (!m_documentLoader)

[horo, 2014/10/28 01:20:21]

ResourceFetcher of the imported HTML doesn't have m_documentLoader.
So we should check localFrame->loader().documentLoader().

See: https://codereview.chromium.org/655373003/

[nhiroki, 2014/10/28 05:21:22]

Thanks for your information! Done in the same way with you.

+        return -1;
+    return localFrame->loader().client()->serviceWorkerID(*m_documentLoader);
+}
+
 bool ResourceFetcher::shouldLoadNewResource(Resource::Type type) const
 {
     if (!frame())