Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/child/quota_dispatcher.h

Index: content/child/quota_dispatcher.h
diff --git a/content/child/quota_dispatcher.h b/content/child/quota_dispatcher.h
index 0b73c145e92f5b98f4148c78cfb573db3a7207f4..e30187bff96d142af91153cfb1becaf538773881 100644
--- a/content/child/quota_dispatcher.h
+++ b/content/child/quota_dispatcher.h
@@ -8,6 +8,7 @@
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <set>
 
 #include "base/id_map.h"
@@ -62,15 +63,15 @@ class QuotaDispatcher : public WorkerThread::Observer {
 
   void QueryStorageUsageAndQuota(const GURL& gurl,
                                  storage::StorageType type,
-                                 Callback* callback);
+                                 std::unique_ptr<Callback> callback);
   void RequestStorageQuota(int render_view_id,
                            const GURL& gurl,
                            storage::StorageType type,
                            uint64_t requested_size,
-                           Callback* callback);
+                           std::unique_ptr<Callback> callback);
 
   // Creates a new Callback instance for WebStorageQuotaCallbacks.
-  static Callback* CreateWebStorageQuotaCallbacksWrapper(
+  static std::unique_ptr<Callback> CreateWebStorageQuotaCallbacksWrapper(
       blink::WebStorageQuotaCallbacks callbacks);
 
  private: