Fixes the cache lock issue.

net/http/http_transaction_test_util.h

Index: net/http/http_transaction_test_util.h
diff --git a/net/http/http_transaction_test_util.h b/net/http/http_transaction_test_util.h
index e936ac9de01d745783c1f2981d98f55df3a60664..afdb4e5701e8f725ac9f0675a2d367403a579315 100644
--- a/net/http/http_transaction_test_util.h
+++ b/net/http/http_transaction_test_util.h
@@ -9,11 +9,14 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
+#include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
+#include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "net/base/io_buffer.h"
 #include "net/base/load_flags.h"
@@ -201,6 +204,7 @@ class MockNetworkTransaction
   int Read(IOBuffer* buf,
            int buf_len,
            const CompletionCallback& callback) override;
+
   void PopulateNetErrorDetails(NetErrorDetails* details) const override;
 
   void StopCaching() override;
@@ -281,7 +285,6 @@ class MockNetworkTransaction
   bool done_reading_called_;
 
   base::WeakPtrFactory<MockNetworkTransaction> weak_factory_;
-
 };
 
 class MockNetworkLayer : public HttpTransactionFactory,
@@ -347,6 +350,15 @@ class MockNetworkLayer : public HttpTransactionFactory,
   base::WeakPtr<MockNetworkTransaction> last_transaction_;
 };
 
+struct Context {
+  Context();
+  ~Context();
+
+  int result;
+  TestCompletionCallback callback;
+  std::unique_ptr<HttpTransaction> trans;
+};
+
 //-----------------------------------------------------------------------------
 // helpers