[ServiceWorker] Update SWProviderHost::Focus() to return a Client.

content/browser/service_worker/service_worker_provider_host.h

Index: content/browser/service_worker/service_worker_provider_host.h
diff --git a/content/browser/service_worker/service_worker_provider_host.h b/content/browser/service_worker/service_worker_provider_host.h
index 61b1c5e765f449b617e45ab63213bfa704d5f840..386bee2300e5d4aded72e9dd32c541e2d1c0ec04 100644
--- a/content/browser/service_worker/service_worker_provider_host.h
+++ b/content/browser/service_worker/service_worker_provider_host.h
@@ -45,7 +45,6 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
     : public NON_EXPORTED_BASE(ServiceWorkerRegistration::Listener),
       public base::SupportsWeakPtr<ServiceWorkerProviderHost> {
  public:
-  using FocusCallback = base::Callback<void(bool)>;
   using GetClientInfoCallback =
       base::Callback<void(const ServiceWorkerClientInfo&)>;
 
@@ -143,9 +142,8 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
 
   // Activates the WebContents associated with
   // { render_process_id_, render_frame_id_ }.
-  // Runs the |callback| with the result in parameter describing whether the
-  // focusing action was successful.
-  void Focus(const FocusCallback& callback);
+  // Runs the |callback| with the updated ServiceWorkerClientInfo in parameter.
+  void Focus(const GetClientInfoCallback& callback);
 
   // Asks the renderer to send back the document information.
   void GetClientInfo(const GetClientInfoCallback& callback) const;