Check that all shared workers are terminated.

content/browser/browser_process_sub_thread.cc

Index: content/browser/browser_process_sub_thread.cc
diff --git a/content/browser/browser_process_sub_thread.cc b/content/browser/browser_process_sub_thread.cc
index 5aadda5ad1edc4c61595f24326eeee25b90209f2..72ffbe36e7c92c2ccb5373abe9490743fd36f0fc 100644
--- a/content/browser/browser_process_sub_thread.cc
+++ b/content/browser/browser_process_sub_thread.cc
@@ -11,6 +11,7 @@
 #include "content/browser/browser_child_process_host_impl.h"
 #include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
 #include "content/browser/notification_service_impl.h"
+#include "content/browser/shared_worker/shared_worker_service_impl.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request.h"
 
@@ -60,6 +61,12 @@ void BrowserProcessSubThread::CleanUp() {
 }
 
 void BrowserProcessSubThread::IOThreadPreCleanUp() {
+  // TODO(alokp): Remove after collecting crash data.
+  // Temporary checks to verify that all shared workers are terminated.
+  // It is suspected that shared workers prevent render process hosts
+  // from shutting down: crbug.com/608049
+  SharedWorkerServiceImpl::GetInstance()->CheckAllWorkersTerminated();
+
   // Kill all things that might be holding onto
   // net::URLRequest/net::URLRequestContexts.