Script streaming: Shutdown streaming before V8.

Source/web/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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "public/web/WebKit.h"
 
+#include "bindings/core/v8/ScriptStreamerThread.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "bindings/core/v8/V8Initializer.h"
 #include "core/Init.h"
 #include "core/animation/AnimationClock.h"
 #include "core/dom/Microtask.h"
 #include "core/frame/Settings.h"
 #include "core/page/Page.h"
 #include "core/workers/WorkerGlobalScopeProxy.h"
 #include "gin/public/v8_platform.h"
@@ skipping 153 matching lines @@
         ASSERT(s_pendingGCRunner);
         delete s_pendingGCRunner;
         s_pendingGCRunner = 0;
 
         ASSERT(s_messageLoopInterruptor);
         ThreadState::current()->removeInterruptor(s_messageLoopInterruptor);
         delete s_messageLoopInterruptor;
         s_messageLoopInterruptor = 0;
     }
 
+    // Shutdown V8-related background threads before V8 is ramped down. Note
+    // that this will wait the thread to stop its operations.
+    ScriptStreamerThread::shutdown();
+
     v8::Isolate* isolate = V8PerIsolateData::mainThreadIsolate();
     V8PerIsolateData::willBeDestroyed(isolate);
 
     // Make sure we stop WorkerThreads before the main thread's ThreadState
     // and later shutdown steps starts freeing up resources needed during
     // worker termination.
     WorkerThread::terminateAndWaitForAllWorkers();
 
     // Detach the main thread before starting the shutdown sequence
     // so that the main thread won't get involved in a GC during the shutdown.
@@ skipping 43 matching lines @@
         channel->state = WTFLogChannelOn;
 #endif // !LOG_DISABLED
 }
 
 void resetPluginCache(bool reloadPages)
 {
     Page::refreshPlugins(reloadPages);
 }
 
 } // namespace blink