Revert of Add task location information to ExecutionContext

Source/modules/webdatabase/DatabaseManager.cpp

 /*
  * Copyright (C) 2012 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 22 matching lines @@
 #include "core/dom/ExecutionContextTask.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "modules/webdatabase/Database.h"
 #include "modules/webdatabase/DatabaseCallback.h"
 #include "modules/webdatabase/DatabaseClient.h"
 #include "modules/webdatabase/DatabaseContext.h"
 #include "modules/webdatabase/DatabaseTask.h"
 #include "modules/webdatabase/DatabaseTracker.h"
 #include "platform/Logging.h"
 #include "platform/weborigin/SecurityOrigin.h"
-#include "public/platform/WebTraceLocation.h"
 #include "wtf/MainThread.h"
 
 namespace blink {
 
 static DatabaseManager* s_databaseManager;
 
 DatabaseManager& DatabaseManager::manager()
 {
     ASSERT(isMainThread());
     if (!s_databaseManager)
@@ skipping 159 matching lines @@
     Database* database = openDatabaseInternal(context, name,
         expectedVersion, displayName, estimatedSize, setVersionInNewDatabase, error, errorMessage);
     if (!database)
         return nullptr;
 
     databaseContextFor(context)->setHasOpenDatabases();
     DatabaseClient::from(context)->didOpenDatabase(database, context->securityOrigin()->host(), name, expectedVersion);
 
     if (database->isNew() && creationCallback) {
         WTF_LOG(StorageAPI, "Scheduling DatabaseCreationCallbackTask for database %p\n", database);
-        database->executionContext()->postTask(FROM_HERE, DatabaseCreationCallbackTask::create(database, creationCallback));
+        database->executionContext()->postTask(DatabaseCreationCallbackTask::create(database, creationCallback));
     }
 
     ASSERT(database);
     return database;
 }
 
 String DatabaseManager::fullPathForDatabase(SecurityOrigin* origin, const String& name, bool createIfDoesNotExist)
 {
     return DatabaseTracker::tracker().fullPathForDatabase(origin, name, createIfDoesNotExist);
 }
 
 void DatabaseManager::logErrorMessage(ExecutionContext* context, const String& message)
 {
     context->addConsoleMessage(ConsoleMessage::create(StorageMessageSource, ErrorMessageLevel, message));
 }
 
 } // namespace blink