Port messages sent by WebIDBFactoryImpl to Mojo.

third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp

Index: third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp b/third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp
index ec660ed553744a272d86fad093ad3266463d028b..f984de81928359521f514913bb76f1bc51eba8d2 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp
@@ -26,6 +26,7 @@
 #include "modules/indexeddb/IDBDatabaseCallbacks.h"
 
 #include "modules/indexeddb/IDBDatabase.h"
+#include "modules/indexeddb/WebIDBDatabaseCallbacksImpl.h"
 
 namespace blink {
 
@@ -60,13 +61,6 @@ void IDBDatabaseCallbacks::onVersionChange(int64_t oldVersion, int64_t newVersio
         m_database->onVersionChange(oldVersion, newVersion);
 }
 
-void IDBDatabaseCallbacks::connect(IDBDatabase* database)
-{
-    ASSERT(!m_database);
-    ASSERT(database);
-    m_database = database;
-}
-
 void IDBDatabaseCallbacks::onAbort(int64_t transactionId, DOMException* error)
 {
     if (m_database)
@@ -79,4 +73,33 @@ void IDBDatabaseCallbacks::onComplete(int64_t transactionId)
         m_database->onComplete(transactionId);
 }
 
+void IDBDatabaseCallbacks::connect(IDBDatabase* database)
+{
+    DCHECK(!m_database);
+    DCHECK(database);
+    m_database = database;
+}
+
+std::unique_ptr<WebIDBDatabaseCallbacks> IDBDatabaseCallbacks::createWebCallbacks()
+{
+    DCHECK(!m_webCallbacks);
+    std::unique_ptr<WebIDBDatabaseCallbacks> callbacks = WebIDBDatabaseCallbacksImpl::create(this);
+    m_webCallbacks = callbacks.get();
+    return callbacks;
+}
+
+void IDBDatabaseCallbacks::detachWebCallbacks()
+{
+    if (m_webCallbacks) {
+        m_webCallbacks->detach();
+        m_webCallbacks = nullptr;
+    }
+}
+
+void IDBDatabaseCallbacks::webCallbacksDestroyed()
+{
+    DCHECK(m_webCallbacks);
+    m_webCallbacks = nullptr;
+}
+
 } // namespace blink