Port messages sent by WebIDBDatabaseImpl to Mojo.

content/browser/indexed_db/indexed_db_database.h

Index: content/browser/indexed_db/indexed_db_database.h
diff --git a/content/browser/indexed_db/indexed_db_database.h b/content/browser/indexed_db/indexed_db_database.h
index 8427563aba4fcc944770c8e6e5363e18384e8188..c4a03b843c79e852458409a08d060c069b0f895e 100644
--- a/content/browser/indexed_db/indexed_db_database.h
+++ b/content/browser/indexed_db/indexed_db_database.h
@@ -49,9 +49,6 @@ struct IndexedDBValue;
 class CONTENT_EXPORT IndexedDBDatabase
     : NON_EXPORTED_BASE(public base::RefCounted<IndexedDBDatabase>) {
  public:
-  // An index and corresponding set of keys
-  using IndexKeys = std::pair<int64_t, std::vector<IndexedDBKey>>;
-
   // Identifier is pair of (origin, database name).
   using Identifier = std::pair<url::Origin, base::string16>;
 
@@ -177,11 +174,11 @@ class CONTENT_EXPORT IndexedDBDatabase
            std::unique_ptr<IndexedDBKey> key,
            blink::WebIDBPutMode mode,
            scoped_refptr<IndexedDBCallbacks> callbacks,
-           const std::vector<IndexKeys>& index_keys);
+           const std::vector<IndexedDBIndexKeys>& index_keys);
   void SetIndexKeys(int64_t transaction_id,
                     int64_t object_store_id,
                     std::unique_ptr<IndexedDBKey> primary_key,
-                    const std::vector<IndexKeys>& index_keys);
+                    const std::vector<IndexedDBIndexKeys>& index_keys);
   void SetIndexesReady(int64_t transaction_id,
                        int64_t object_store_id,
                        const std::vector<int64_t>& index_ids);