Reland r113261 rebased after revert of r113249.

net/disk_cache/mem_backend_impl.cc

Index: net/disk_cache/mem_backend_impl.cc
diff --git a/net/disk_cache/mem_backend_impl.cc b/net/disk_cache/mem_backend_impl.cc
index f08b316465010e377740da26234ea444e08c3110..226050c82a6292b6b665affb3032467218315207 100644
--- a/net/disk_cache/mem_backend_impl.cc
+++ b/net/disk_cache/mem_backend_impl.cc
@@ -159,6 +159,13 @@ int MemBackendImpl::DoomAllEntries(OldCompletionCallback* callback) {
   return net::ERR_FAILED;
 }
 
+int MemBackendImpl::DoomAllEntries(const net::CompletionCallback& callback) {
+  if (DoomAllEntries())
+    return net::OK;
+
+  return net::ERR_FAILED;
+}
+
 int MemBackendImpl::DoomEntriesBetween(const base::Time initial_time,
                                        const base::Time end_time,
                                        OldCompletionCallback* callback) {
@@ -168,6 +175,15 @@ int MemBackendImpl::DoomEntriesBetween(const base::Time initial_time,
   return net::ERR_FAILED;
 }
 
+int MemBackendImpl::DoomEntriesBetween(
+    const base::Time initial_time, const base::Time end_time,
+    const net::CompletionCallback& callback) {
+  if (DoomEntriesBetween(initial_time, end_time))
+    return net::OK;
+
+  return net::ERR_FAILED;
+}
+
 int MemBackendImpl::DoomEntriesSince(const base::Time initial_time,
                                      OldCompletionCallback* callback) {
   if (DoomEntriesSince(initial_time))