[oilpan] Rename PauseScope to SafePointScope

Source/WebKit/chromium/src/WebKit.cpp

 /*
  * Copyright (C) 2009 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 75 matching lines @@
     HandleScopeManager() : m_nesting(0) { }
 
     ~HandleScopeManager()
     {
         ASSERT(!m_nesting);
     }
 
     virtual void willProcessTask()
     {
         // FIXME(oilpan): instead of managing this state in the willProcessTask we need
-        // to explicitly manage paused state in the event loop itself.
-        if (!m_nesting && WebCore::ThreadState::MainThreadState()->isPaused())
-            WebCore::ThreadState::MainThreadState()->resumed();
+        // to explicitly manage thread state in the event loop itself.
+        if (!m_nesting && WebCore::ThreadState::MainThreadState()->isInSafePoint())

[Mads Ager (chromium), 2013/12/05 09:22:24]

isAtSafePoint?

[haraken, 2013/12/05 09:37:40]

Done. (I called it inSafePoint since we have ThreadState::isInGC and
ThreadState::m_inGC, and "safe point" sounds like some space to be
entered/left.)

+            WebCore::ThreadState::MainThreadState()->leaveSafePoint();
 
         m_nesting++;
     }
 
     virtual void didProcessTask()
     {
         // FIXME(oilpan): Apparently we can get here without a call to willProcessTask.
         if (m_nesting)
             m_nesting--;
 
         if (!m_nesting) {
             WebCore::ThreadState* threadState = WebCore::ThreadState::MainThreadState();
-            threadState->paused(WebCore::ThreadState::NoHeapPointersOnStack);
+            threadState->enterSafePoint(WebCore::ThreadState::NoHeapPointersOnStack);
         }
     }
 
 private:
     int m_nesting;
 };
 
 } // namespace
 
 static WebThread::TaskObserver* s_endOfTaskRunner = 0;
@@ skipping 131 matching lines @@
     UNUSED_PARAM(name);
 #endif // !LOG_DISABLED
 }
 
 void resetPluginCache(bool reloadPages)
 {
     WebCore::Page::refreshPlugins(reloadPages);
 }
 
 } // namespace WebKit