Removing unused field - AppCacheResponseIO::group_id_.

content/browser/service_worker/service_worker_disk_cache.cc

Index: content/browser/service_worker/service_worker_disk_cache.cc
diff --git a/content/browser/service_worker/service_worker_disk_cache.cc b/content/browser/service_worker/service_worker_disk_cache.cc
index f398e61bd2eb771738a9a626b78b06822c602591..a09444731e0456040207106f51f50aa23ef3b4a4 100644
--- a/content/browser/service_worker/service_worker_disk_cache.cc
+++ b/content/browser/service_worker/service_worker_disk_cache.cc
@@ -12,16 +12,16 @@ ServiceWorkerDiskCache::ServiceWorkerDiskCache()
 ServiceWorkerResponseReader::ServiceWorkerResponseReader(
     int64_t resource_id,
     const base::WeakPtr<AppCacheDiskCacheInterface>& disk_cache)
-    : AppCacheResponseReader(resource_id, 0, disk_cache) {}
+    : AppCacheResponseReader(resource_id, disk_cache) {}
 
 ServiceWorkerResponseWriter::ServiceWorkerResponseWriter(
     int64_t resource_id,
     const base::WeakPtr<AppCacheDiskCacheInterface>& disk_cache)
-    : AppCacheResponseWriter(resource_id, 0, disk_cache) {}
+    : AppCacheResponseWriter(resource_id, disk_cache) {}
 
 ServiceWorkerResponseMetadataWriter::ServiceWorkerResponseMetadataWriter(
     int64_t resource_id,
     const base::WeakPtr<AppCacheDiskCacheInterface>& disk_cache)
-    : AppCacheResponseMetadataWriter(resource_id, 0, disk_cache) {}
+    : AppCacheResponseMetadataWriter(resource_id, disk_cache) {}
 
 }  // namespace content