Fix crash in ClearCache in some cases

rogerwang · rogerwang · commit d54b25f03c36 · 2013-12-09T13:04:34.000+08:00
diff --git a/src/browser/net_disk_cache_remover.cc b/src/browser/net_disk_cache_remover.cc
@@ -32,7 +32,8 @@ void Noop(base::WaitableEvent* completion, int rv) {
 
 void CallDoomAllEntries(Backend** backend, base::WaitableEvent* completion, int rv) {
   DCHECK(rv == net::OK);
-  (*backend)->DoomAllEntries(base::Bind(&Noop, completion));
+  if (backend && *backend)
+    (*backend)->DoomAllEntries(base::Bind(&Noop, completion));
 }
 
 void ClearHttpDiskCacheOfContext(URLRequestContextGetter* context_getter,

Original file line number	Diff line number	Diff line change
`@@ -32,7 +32,8 @@ void Noop(base::WaitableEvent* completion, int rv) {`
`32`	`32`
`33`	`33`	`void CallDoomAllEntries(Backend** backend, base::WaitableEvent* completion, int rv) {`
`34`	`34`	`DCHECK(rv == net::OK);`
`35`		`- (*backend)->DoomAllEntries(base::Bind(&Noop, completion));`
	`35`	`+ if (backend && *backend)`
	`36`	`+ (*backend)->DoomAllEntries(base::Bind(&Noop, completion));`
`36`	`37`	`}`
`37`	`38`
`38`	`39`	`void ClearHttpDiskCacheOfContext(URLRequestContextGetter* context_getter,`