Revert of ServiceWorker: Implement ServiceWorkerRegistration.update() (1)

Source/modules/serviceworkers/ServiceWorkerRegistration.cpp

Index: Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
diff --git a/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
index b5ed86678ff0387a49e1b23575f19588e88d3d43..1f7f2a6e4b6e28e0db7241f71704b52d93ae3a31 100644
--- a/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
+++ b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
@@ -86,25 +86,6 @@
     return m_outerRegistration->scope().string();
 }
 
-void ServiceWorkerRegistration::update(ScriptState* scriptState, ExceptionState& exceptionState)
-{
-    if (!m_provider) {
-        exceptionState.throwDOMException(InvalidStateError, "Failed to update a ServiceWorkerRegistration: No associated provider is available.");
-        return;
-    }
-
-    RefPtr<SecurityOrigin> documentOrigin = scriptState->executionContext()->securityOrigin();
-    KURL scopeURL = scriptState->executionContext()->completeURL(scope());
-    scopeURL.removeFragmentIdentifier();
-    if (!scope().isEmpty() && !documentOrigin->canRequest(scopeURL)) {
-        RefPtr<SecurityOrigin> scopeOrigin = SecurityOrigin::create(scopeURL);
-        exceptionState.throwSecurityError("Failed to update a ServiceWorkerRegistration: The origin of the registration's scope ('" + scopeOrigin->toString() + "') does not match the current origin ('" + documentOrigin->toString() + "').");
-        return;
-    }
-
-    m_provider->updateServiceWorker(scopeURL);
-}
-
 ScriptPromise ServiceWorkerRegistration::unregister(ScriptState* scriptState)
 {
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);