Wrap large IndexedDB values into Blobs before writing to LevelDB.

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

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 90 matching lines @@
     return nullptr;
   }
 
   IDBDatabaseCallbacks* database_callbacks = IDBDatabaseCallbacks::Create();
   int64_t transaction_id = IDBDatabase::NextTransactionId();
   IDBOpenDBRequest* request = IDBOpenDBRequest::Create(
       script_state, database_callbacks, transaction_id, version);
 
   if (!IndexedDBClient::From(ExecutionContext::From(script_state))
            ->AllowIndexedDB(ExecutionContext::From(script_state), name)) {
-    request->EnqueueResponse(
+    request->HandleResponse(
         DOMException::Create(kUnknownError, kPermissionDeniedErrorMessage));
     return request;
   }
 
   Platform::Current()->IdbFactory()->Open(
       name, version, transaction_id, request->CreateWebCallbacks().release(),
       database_callbacks->CreateWebCallbacks().release(),
       WebSecurityOrigin(
           ExecutionContext::From(script_state)->GetSecurityOrigin()));
   return request;
@@ skipping 32 matching lines @@
 }
 
 IDBOpenDBRequest* IDBFactory::DeleteDatabaseInternal(ScriptState* script_state,
                                                      const String& name,
                                                      bool force_close) {
   IDBOpenDBRequest* request = IDBOpenDBRequest::Create(
       script_state, nullptr, 0, IDBDatabaseMetadata::kDefaultVersion);
 
   if (!IndexedDBClient::From(ExecutionContext::From(script_state))
            ->AllowIndexedDB(ExecutionContext::From(script_state), name)) {
-    request->EnqueueResponse(
+    request->HandleResponse(
         DOMException::Create(kUnknownError, kPermissionDeniedErrorMessage));
     return request;
   }
 
   Platform::Current()->IdbFactory()->DeleteDatabase(
       name, request->CreateWebCallbacks().release(),
       WebSecurityOrigin(
           ExecutionContext::From(script_state)->GetSecurityOrigin()),
       force_close);
   return request;
@@ skipping 22 matching lines @@
   if (!second->IsValid()) {
     exception_state.ThrowDOMException(kDataError,
                                       IDBDatabase::kNotValidKeyErrorMessage);
     return 0;
   }
 
   return static_cast<short>(first->Compare(second));
 }
 
 }  // namespace blink