Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h

Index: third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
diff --git a/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h b/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
index cb921090f9dfb4df1979b8ce927fe163cb2123f2..08885fa04018f6eee55d9c02c89b005297ab7020 100644
--- a/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
+++ b/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
@@ -67,14 +67,17 @@ class WebServiceWorkerProvider {
   using WebServiceWorkerGetRegistrationForReadyCallbacks =
       WebCallbacks<std::unique_ptr<WebServiceWorkerRegistration::Handle>, void>;
 
-  virtual void registerServiceWorker(const WebURL& pattern,
-                                     const WebURL& scriptUrl,
-                                     WebServiceWorkerRegistrationCallbacks*) {}
-  virtual void getRegistration(const WebURL& documentURL,
-                               WebServiceWorkerGetRegistrationCallbacks*) {}
-  virtual void getRegistrations(WebServiceWorkerGetRegistrationsCallbacks*) {}
+  virtual void registerServiceWorker(
+      const WebURL& pattern,
+      const WebURL& scriptUrl,
+      std::unique_ptr<WebServiceWorkerRegistrationCallbacks>) {}
+  virtual void getRegistration(
+      const WebURL& documentURL,
+      std::unique_ptr<WebServiceWorkerGetRegistrationCallbacks>) {}
+  virtual void getRegistrations(
+      std::unique_ptr<WebServiceWorkerGetRegistrationsCallbacks>) {}
   virtual void getRegistrationForReady(
-      WebServiceWorkerGetRegistrationForReadyCallbacks*) {}
+      std::unique_ptr<WebServiceWorkerGetRegistrationForReadyCallbacks>) {}
   virtual bool validateScopeAndScriptURL(const WebURL& scope,
                                          const WebURL& scriptURL,
                                          WebString* errorMessage) {