Revert of Gather the ServiceWorker client information in the browser process.

content/common/service_worker/service_worker_types.h

Index: content/common/service_worker/service_worker_types.h
diff --git a/content/common/service_worker/service_worker_types.h b/content/common/service_worker/service_worker_types.h
index 8d3dc2964908a7edcc1448a692cfde4544ff7976..6191a4760e264b44d1247d25d9e4ca9d2c857618 100644
--- a/content/common/service_worker/service_worker_types.h
+++ b/content/common/service_worker/service_worker_types.h
@@ -48,7 +48,6 @@
 static const int64 kInvalidServiceWorkerResourceId = -1;
 static const int64 kInvalidServiceWorkerResponseId = -1;
 static const int kInvalidEmbeddedWorkerThreadId = -1;
-static const int kInvalidServiceWorkerClientId = 0;
 
 enum FetchRequestMode {
   FETCH_REQUEST_MODE_SAME_ORIGIN,
@@ -205,6 +204,14 @@
   int changed_;
 };
 
+struct ServiceWorkerClientInfo {
+  int client_id;
+  blink::WebPageVisibilityState page_visibility_state;
+  bool is_focused;
+  GURL url;
+  RequestContextFrameType frame_type;
+};
+
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_TYPES_H_