Replace setIndexedDBClientCreateFunction madness with Supplements

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 32 matching lines @@
 #include "platform/Histogram.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebSecurityOrigin.h"
 #include "public/platform/modules/indexeddb/WebIDBFactory.h"
 
 namespace blink {
 
 static const char permissionDeniedErrorMessage[] = "The user denied permission to access the database.";
 
-IDBFactory::IDBFactory(IndexedDBClient* permissionClient)
-    : m_permissionClient(permissionClient)
+IDBFactory::IDBFactory()
 {
 }
 
-DEFINE_TRACE(IDBFactory)
-{
-    visitor->trace(m_permissionClient);
-}
-
 static bool isContextValid(ExecutionContext* context)
 {
     ASSERT(context->isDocument() || context->isWorkerGlobalScope());
     if (context->isDocument()) {
         Document* document = toDocument(context);
         return document->frame() && document->page();
     }
     return true;
 }
 
 IDBRequest* IDBFactory::getDatabaseNames(ScriptState* scriptState, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBFactory::getDatabaseNames");
     if (!isContextValid(scriptState->getExecutionContext()))
         return nullptr;
     if (!scriptState->getExecutionContext()->getSecurityOrigin()->canAccessDatabase()) {
         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
         return nullptr;
     }
 
     IDBRequest* request = IDBRequest::create(scriptState, IDBAny::createNull(), nullptr);
 
-    if (!m_permissionClient->allowIndexedDB(scriptState->getExecutionContext(), "Database Listing")) {
+    if (!IndexedDBClient::from(scriptState->getExecutionContext())->allowIndexedDB(scriptState->getExecutionContext(), "Database Listing")) {
         request->onError(DOMException::create(UnknownError, permissionDeniedErrorMessage));
         return request;
     }
 
     Platform::current()->idbFactory()->getDatabaseNames(WebIDBCallbacksImpl::create(request).leakPtr(), WebSecurityOrigin(scriptState->getExecutionContext()->getSecurityOrigin()));
     return request;
 }
 
 IDBOpenDBRequest* IDBFactory::open(ScriptState* scriptState, const String& name, unsigned long long version, ExceptionState& exceptionState)
 {
@@ skipping 13 matching lines @@
         return nullptr;
     if (!scriptState->getExecutionContext()->getSecurityOrigin()->canAccessDatabase()) {
         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
         return nullptr;
     }
 
     IDBDatabaseCallbacks* databaseCallbacks = IDBDatabaseCallbacks::create();
     int64_t transactionId = IDBDatabase::nextTransactionId();
     IDBOpenDBRequest* request = IDBOpenDBRequest::create(scriptState, databaseCallbacks, transactionId, version);
 
-    if (!m_permissionClient->allowIndexedDB(scriptState->getExecutionContext(), name)) {
+    if (!IndexedDBClient::from(scriptState->getExecutionContext())->allowIndexedDB(scriptState->getExecutionContext(), name)) {
         request->onError(DOMException::create(UnknownError, permissionDeniedErrorMessage));
         return request;
     }
 
     Platform::current()->idbFactory()->open(name, version, transactionId, WebIDBCallbacksImpl::create(request).leakPtr(), WebIDBDatabaseCallbacksImpl::create(databaseCallbacks).leakPtr(), WebSecurityOrigin(scriptState->getExecutionContext()->getSecurityOrigin()));
     return request;
 }
 
 IDBOpenDBRequest* IDBFactory::open(ScriptState* scriptState, const String& name, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBFactory::open");
     return openInternal(scriptState, name, IDBDatabaseMetadata::NoVersion, exceptionState);
 }
 
 IDBOpenDBRequest* IDBFactory::deleteDatabase(ScriptState* scriptState, const String& name, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBFactory::deleteDatabase");
     IDBDatabase::recordApiCallsHistogram(IDBDeleteDatabaseCall);
     if (!isContextValid(scriptState->getExecutionContext()))
         return nullptr;
     if (!scriptState->getExecutionContext()->getSecurityOrigin()->canAccessDatabase()) {
         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
         return nullptr;
     }
 
     IDBOpenDBRequest* request = IDBOpenDBRequest::create(scriptState, nullptr, 0, IDBDatabaseMetadata::DefaultVersion);
 
-    if (!m_permissionClient->allowIndexedDB(scriptState->getExecutionContext(), name)) {
+    if (!IndexedDBClient::from(scriptState->getExecutionContext())->allowIndexedDB(scriptState->getExecutionContext(), name)) {
         request->onError(DOMException::create(UnknownError, permissionDeniedErrorMessage));
         return request;
     }
 
     Platform::current()->idbFactory()->deleteDatabase(name, WebIDBCallbacksImpl::create(request).leakPtr(), WebSecurityOrigin(scriptState->getExecutionContext()->getSecurityOrigin()));
     return request;
 }
 
 short IDBFactory::cmp(ScriptState* scriptState, const ScriptValue& firstValue, const ScriptValue& secondValue, ExceptionState& exceptionState)
 {
@@ skipping 12 matching lines @@
     ASSERT(second);
     if (!second->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
         return 0;
     }
 
     return static_cast<short>(first->compare(second));
 }
 
 } // namespace blink