Remove worker support of Web SQL Database.

Source/modules/webdatabase/DatabaseTracker.cpp

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 179 matching lines @@
 unsigned long long DatabaseTracker::getMaxSizeForDatabase(const DatabaseBackendBase* database)
 {
     unsigned long long spaceAvailable = 0;
     unsigned long long databaseSize = 0;
     QuotaTracker::instance().getDatabaseSizeAndSpaceAvailableToOrigin(
         createDatabaseIdentifierFromSecurityOrigin(database->securityOrigin()),
         database->stringIdentifier(), &databaseSize, &spaceAvailable);
     return databaseSize + spaceAvailable;
 }
 
-void DatabaseTracker::interruptAllDatabasesForContext(const DatabaseContext* context)
-{
-    MutexLocker openDatabaseMapLock(m_openDatabaseMapGuard);
-
-    if (!m_openDatabaseMap)
-        return;
-
-    DatabaseNameMap* nameMap = m_openDatabaseMap->get(createDatabaseIdentifierFromSecurityOrigin(context->securityOrigin()));
-    if (!nameMap)
-        return;
-
-    DatabaseNameMap::const_iterator dbNameMapEndIt = nameMap->end();
-    for (DatabaseNameMap::const_iterator dbNameMapIt = nameMap->begin(); dbNameMapIt != dbNameMapEndIt; ++dbNameMapIt) {
-        DatabaseSet* databaseSet = dbNameMapIt->value;
-        DatabaseSet::const_iterator end = databaseSet->end();
-        for (DatabaseSet::const_iterator it = databaseSet->begin(); it != end; ++it) {
-            if ((*it)->databaseContext() == context)
-                (*it)->interrupt();
-        }
-    }
-}
-
 class DatabaseTracker::CloseOneDatabaseImmediatelyTask FINAL : public ExecutionContextTask {
 public:
     static PassOwnPtr<CloseOneDatabaseImmediatelyTask> create(const String& originIdentifier, const String& name, DatabaseBackendBase* database)
     {
         return adoptPtr(new CloseOneDatabaseImmediatelyTask(originIdentifier, name, database));
     }
 
     virtual void performTask(ExecutionContext*) OVERRIDE
     {
         DatabaseTracker::tracker().closeOneDatabaseImmediately(m_originIdentifier, m_name, m_database);
@@ skipping 52 matching lines @@
         DatabaseSet::iterator found = databaseSet->find(database);
         if (found == databaseSet->end())
             return;
     }
 
     // And we have to call closeImmediately() without our collection lock being held.
     database->closeImmediately();
 }
 
 } // namespace blink