Abort SandboxedUnpacker::RewriteImageFiles on browser shutdown

base/threading/sequenced_worker_pool.h

Index: base/threading/sequenced_worker_pool.h
diff --git a/base/threading/sequenced_worker_pool.h b/base/threading/sequenced_worker_pool.h
index 7e04b071428c838dfcec0faa647f82baf2932045..95117f9b07e54a67fb170220030430c7c33cf1a0 100644
--- a/base/threading/sequenced_worker_pool.h
+++ b/base/threading/sequenced_worker_pool.h
@@ -316,6 +316,12 @@ class BASE_EXPORT SequencedWorkerPool : public TaskRunner {
   // Must be called from the same thread this object was constructed on.
   void Shutdown(int max_new_blocking_tasks_after_shutdown);
 
+  // Check if Shutdown was called for given threading pool. This method is used
+  // for aborting time consuming operation to don't block shutdown.

[jar (doing other things), 2013/07/10 15:07:06]

nit: typo:

"...to don't block shutdown." --> "...to avoid blocking shutdown."

[Dmitry Polukhin, 2013/07/10 17:24:22]

Done.

+  //
+  // Can be called from any thread.
+  bool IsShutdownInProgress();
+
  protected:
   virtual ~SequencedWorkerPool();