Implement support for link type serviceworker in link elements.

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

Index: third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
index 4ac562aaae76c81a107b44a1694e8398609eda80..933575c0f013cf5c21995fe7bc6c598d464d925d 100644
--- a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
+++ b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
@@ -49,6 +49,7 @@
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/HistoryItem.h"
+#include "core/loader/LinkLoaderClient.h"
 #include "core/page/Page.h"
 #include "core/page/WindowFeatures.h"
 #include "modules/audio_output_devices/HTMLMediaElementAudioOutputDevice.h"
@@ -61,6 +62,7 @@
 #include "modules/mediasession/HTMLMediaElementMediaSession.h"
 #include "modules/mediasession/MediaSession.h"
 #include "modules/serviceworkers/NavigatorServiceWorker.h"
+#include "modules/serviceworkers/ServiceWorkerContainer.h"
 #include "modules/storage/DOMWindowStorageController.h"
 #include "modules/vr/NavigatorVRDevice.h"
 #include "platform/Histogram.h"
@@ -77,6 +79,7 @@
 #include "public/platform/WebMediaPlayer.h"
 #include "public/platform/WebMimeRegistry.h"
 #include "public/platform/WebRTCPeerConnectionHandler.h"
+#include "public/platform/WebScheduler.h"
 #include "public/platform/WebSecurityOrigin.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/WebURLError.h"
@@ -1029,4 +1032,46 @@ void FrameLoaderClientImpl::suddenTerminationDisablerChanged(bool present, Sudde
     }
 }
 
+namespace {
+
+class RegistrationCallback : public WebServiceWorkerProvider::WebServiceWorkerRegistrationCallbacks {
+public:
+    explicit RegistrationCallback(LinkLoaderClient* client) : m_client(client) {}
+    ~RegistrationCallback() override {}
+
+    void onSuccess(WebPassOwnPtr<WebServiceWorkerRegistration::Handle> handle) override
+    {
+        Platform::current()->currentThread()->scheduler()->timerTaskRunner()->postTask(BLINK_FROM_HERE, bind(&LinkLoaderClient::linkLoaded, m_client));
+    }
+
+    void onError(const WebServiceWorkerError& error) override
+    {
+        Platform::current()->currentThread()->scheduler()->timerTaskRunner()->postTask(BLINK_FROM_HERE, bind(&LinkLoaderClient::linkLoadingErrored, m_client));
+    }
+
+private:
+    WTF_MAKE_NONCOPYABLE(RegistrationCallback);
+
+    RawPtrWillBePersistent<LinkLoaderClient> m_client;
+};
+
+}
+
+void FrameLoaderClientImpl::registerServiceWorker(const KURL& scriptURL, const String& scope, LinkLoaderClient* client)
+{
+    if (!client->shouldLoadLink())
+        return;
+
+    Document* document = m_webFrame->frame()->document();
+    KURL scopeURL;
+    if (scope.isNull())
+        scopeURL = KURL(scriptURL, "./");
+    else
+        scopeURL = document->completeURL(scope);
+    scopeURL.removeFragmentIdentifier();
+
+    TrackExceptionState exceptionState;
+    NavigatorServiceWorker::serviceWorker(document, *m_webFrame->frame()->domWindow()->navigator(), exceptionState)->registerServiceWorkerImpl(document, scriptURL, scopeURL, adoptPtr(new RegistrationCallback(client)));
+}
+
 } // namespace blink