Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/browser/quota_dispatcher_host.cc

Index: content/browser/quota_dispatcher_host.cc
diff --git a/content/browser/quota_dispatcher_host.cc b/content/browser/quota_dispatcher_host.cc
index 512beaf6aad16dea1f8b5dabdcf31b0205897e4e..c86215002aa3207775e5c904363b9309d976de36 100644
--- a/content/browser/quota_dispatcher_host.cc
+++ b/content/browser/quota_dispatcher_host.cc
@@ -6,6 +6,8 @@
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "base/numerics/safe_conversions.h"
@@ -33,7 +35,8 @@ class QuotaDispatcherHost::RequestDispatcher {
       : dispatcher_host_(dispatcher_host),
         render_process_id_(dispatcher_host->process_id_),
         request_id_(request_id) {
-    dispatcher_host_->outstanding_requests_.AddWithID(this, request_id_);
+    dispatcher_host_->outstanding_requests_.AddWithID(
+        std::unique_ptr<RequestDispatcher>(this), request_id_);
   }
   virtual ~RequestDispatcher() {}