Port messages sent by WebIDBFactoryImpl to Mojo.

content/browser/indexed_db/indexed_db_callbacks.h

Index: content/browser/indexed_db/indexed_db_callbacks.h
diff --git a/content/browser/indexed_db/indexed_db_callbacks.h b/content/browser/indexed_db/indexed_db_callbacks.h
index 088c16333059ae3f2b0b323441b8756a0e996775..aa388426ff6af82a90406cbe6e435d3e011b1ddb 100644
--- a/content/browser/indexed_db/indexed_db_callbacks.h
+++ b/content/browser/indexed_db/indexed_db_callbacks.h
@@ -17,6 +17,7 @@
 #include "base/strings/string16.h"
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
+#include "content/common/indexed_db/indexed_db.mojom.h"
 #include "content/common/indexed_db/indexed_db_key.h"
 #include "content/common/indexed_db/indexed_db_key_path.h"
 #include "url/origin.h"
@@ -46,13 +47,11 @@ class CONTENT_EXPORT IndexedDBCallbacks
                      int32_t ipc_callbacks_id,
                      int32_t ipc_cursor_id);
 
-  // IndexedDBDatabase responses
-  IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
-                     int32_t ipc_thread_id,
-                     int32_t ipc_callbacks_id,
-                     int32_t ipc_database_callbacks_id,
-                     int64_t host_transaction_id,
-                     const url::Origin& origin);
+  // Mojo-based responses
+  IndexedDBCallbacks(
+      IndexedDBDispatcherHost* dispatcher_host,
+      const url::Origin& origin,
+      ::indexed_db::mojom::CallbacksAssociatedPtrInfo callbacks_info);
 
   virtual void OnError(const IndexedDBDatabaseError& error);
 
@@ -113,6 +112,10 @@ class CONTENT_EXPORT IndexedDBCallbacks
 
   void SetConnectionOpenStartTime(const base::TimeTicks& start_time);
 
+  void set_host_transaction_id(int64_t host_transaction_id) {
+    host_transaction_id_ = host_transaction_id;
+  }
+
  protected:
   virtual ~IndexedDBCallbacks();
 
@@ -122,6 +125,8 @@ class CONTENT_EXPORT IndexedDBCallbacks
 
   friend class base::RefCounted<IndexedDBCallbacks>;
 
+  class IOThreadHelper;
+
   // Originally from IndexedDBCallbacks:
   scoped_refptr<IndexedDBDispatcherHost> dispatcher_host_;
   int32_t ipc_callbacks_id_;
@@ -134,7 +139,6 @@ class CONTENT_EXPORT IndexedDBCallbacks
   int64_t host_transaction_id_;
   url::Origin origin_;
   int32_t ipc_database_id_;
-  int32_t ipc_database_callbacks_id_;
 
   // Used to assert that OnSuccess is only called if there was no data loss.
   blink::WebIDBDataLoss data_loss_;
@@ -142,6 +146,9 @@ class CONTENT_EXPORT IndexedDBCallbacks
   // The "blocked" event should be sent at most once per request.
   bool sent_blocked_;
   base::TimeTicks connection_open_start_time_;
+
+  std::unique_ptr<IOThreadHelper, BrowserThread::DeleteOnIOThread> io_helper_;
+
   DISALLOW_COPY_AND_ASSIGN(IndexedDBCallbacks);
 };