Add a TestBrowserThreadBundle to Shared Worker tests

content/browser/shared_worker/shared_worker_instance_unittest.cc

Index: content/browser/shared_worker/shared_worker_instance_unittest.cc
diff --git a/content/browser/shared_worker/shared_worker_instance_unittest.cc b/content/browser/shared_worker/shared_worker_instance_unittest.cc
index a05461a92b861cb97e4ef5f6b08c9e1c3697042d..7811e77af307abcba343ad8df0f2115f7ab26ff6 100644
--- a/content/browser/shared_worker/shared_worker_instance_unittest.cc
+++ b/content/browser/shared_worker/shared_worker_instance_unittest.cc
@@ -9,6 +9,7 @@
 #include "content/browser/shared_worker/shared_worker_instance.h"
 #include "content/browser/shared_worker/worker_storage_partition.h"
 #include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
@@ -37,6 +38,7 @@ class SharedWorkerInstanceTest : public testing::Test {
                             browser_context_->GetResourceContext());
   }
 
+  TestBrowserThreadBundle thread_bundle_;

[horo, 2014/08/07 04:29:38]

Sorry I can't understand why we need TestBrowserThreadBundle in
SharedWorkerInstanceTest.
Could you please write comments about why we need it?

   scoped_ptr<TestBrowserContext> browser_context_;
   scoped_ptr<WorkerStoragePartition> partition_;
   const WorkerStoragePartitionId partition_id_;