Change over IgnoreReturn to IgnoreResult. remove IgnoreReturn.

chrome/browser/safe_browsing/safe_browsing_service.cc

Index: chrome/browser/safe_browsing/safe_browsing_service.cc
diff --git a/chrome/browser/safe_browsing/safe_browsing_service.cc b/chrome/browser/safe_browsing/safe_browsing_service.cc
index 17c35711455c45a47247fcc96db93a831d350d56..3d01877341cb442c253d0cc8ca90ca2e839a7c0d 100644
--- a/chrome/browser/safe_browsing/safe_browsing_service.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_service.cc
@@ -657,9 +657,9 @@ bool SafeBrowsingService::MakeDatabaseAvailable() {
   DCHECK(enabled_);
   if (DatabaseAvailable())
     return true;
-  safe_browsing_thread_->message_loop()->PostTask(FROM_HERE,
-      base::IgnoreReturn<SafeBrowsingDatabase*>(
-          base::Bind(&SafeBrowsingService::GetDatabase, this)));
+  safe_browsing_thread_->message_loop()->PostTask(
+      FROM_HERE,
+      base::Bind(base::IgnoreResult(&SafeBrowsingService::GetDatabase), this));
   return false;
 }