Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/child/indexed_db/webidbcursor_impl_unittest.cc

Index: content/child/indexed_db/webidbcursor_impl_unittest.cc
diff --git a/content/child/indexed_db/webidbcursor_impl_unittest.cc b/content/child/indexed_db/webidbcursor_impl_unittest.cc
index 83b2110ac14140f1c4b927e7aad776f6992bc806..5448761019d4fff6a5e12b3e9ba73eaeccaa067e 100644
--- a/content/child/indexed_db/webidbcursor_impl_unittest.cc
+++ b/content/child/indexed_db/webidbcursor_impl_unittest.cc
@@ -8,6 +8,7 @@
 #include <stdint.h>
 
 #include <memory>
+#include <utility>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ -48,11 +49,11 @@ class MockDispatcher : public IndexedDBDispatcher {
         destroyed_cursor_id_(0) {}
 
   void RequestIDBCursorPrefetch(int n,
-                                WebIDBCallbacks* callbacks,
+                                std::unique_ptr<WebIDBCallbacks> callbacks,
                                 int32_t ipc_cursor_id) override {
     ++prefetch_calls_;
     last_prefetch_count_ = n;
-    callbacks_.reset(callbacks);
+    callbacks_ = std::move(callbacks);
   }
 
   void RequestIDBCursorPrefetchReset(int used_prefetches,
@@ -63,20 +64,20 @@ class MockDispatcher : public IndexedDBDispatcher {
   }
 
   void RequestIDBCursorAdvance(unsigned long count,
-                               WebIDBCallbacks* callbacks,
+                               std::unique_ptr<WebIDBCallbacks> callbacks,
                                int32_t ipc_cursor_id,
                                int64_t transaction_id) override {
     ++advance_calls_;
-    callbacks_.reset(callbacks);
+    callbacks_ = std::move(callbacks);
   }
 
   void RequestIDBCursorContinue(const IndexedDBKey& key,
                                 const IndexedDBKey& primary_key,
-                                WebIDBCallbacks* callbacks,
+                                std::unique_ptr<WebIDBCallbacks> callbacks,
                                 int32_t ipc_cursor_id,
                                 int64_t transaction_id) override {
     ++continue_calls_;
-    callbacks_.reset(callbacks);
+    callbacks_ = std::move(callbacks);
   }
 
   void CursorDestroyed(int32_t ipc_cursor_id) override {