[oilpan] Rename PauseScope to SafePointScope

Source/modules/webdatabase/DatabaseThread.cpp

 /*
  * Copyright (C) 2007, 2008, 2013 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
@@ skipping 95 matching lines @@
     {
         // Wait for DatabaseThread::start() to complete.
         MutexLocker lock(m_threadCreationMutex);
         LOG(StorageAPI, "Started DatabaseThread %p", this);
     }
 
     AutodrainedPool pool;
     while (true) {
         OwnPtr<DatabaseTask> task;
         {
-            ThreadState::PauseScope pauseScope(ThreadState::NoHeapPointersOnStack);
+            ThreadState::SafePointScope safePointScope(ThreadState::NoHeapPointersOnStack);
             task = m_queue.waitForMessage();
             if (!task)
                 break;
         }
 
         task->performTask();
         pool.cycle();
     }
 
     // Clean up the list of all pending transactions on this database thread
@@ skipping 61 matching lines @@
 };
 
 void DatabaseThread::unscheduleDatabaseTasks(DatabaseBackend* database)
 {
     // Note that the thread loop is running, so some tasks for the database
     // may still be executed. This is unavoidable.
     SameDatabasePredicate predicate(database);
     m_queue.removeIf(predicate);
 }
 } // namespace WebCore