Added completion notification to Profile's ClearNetworkingHistorySince.

base/test/mock_callback.h

Index: base/test/mock_callback.h
diff --git a/base/mac/bind_objc_block.h b/base/test/mock_callback.h
similarity index 50%
copy from base/mac/bind_objc_block.h
copy to base/test/mock_callback.h
index 2d48c7d397858f575448b60a0be2e13f3c286384..23e9506b585ff5b540f67207611482ccbb1b06b6 100644
--- a/base/mac/bind_objc_block.h
+++ b/base/test/mock_callback.h
@@ -2,17 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef BASE_MAC_BIND_OBJC_BLOCK_H_
-#define BASE_MAC_BIND_OBJC_BLOCK_H_
+#ifndef BASE_TEST_MOCK_CALLBACK_H_
+#define BASE_TEST_MOCK_CALLBACK_H_
 
-#include "base/base_export.h"
 #include "base/callback_forward.h"
 
 namespace base {
 
-// Construct a closure from an objective-C block.
-BASE_EXPORT base::Closure BindBlock(void(^block)());
+// Returns a new mock closure that expects to be Run() exactly once.
+Closure NewExpectedClosure();
 
 }  // namespace base
 
-#endif  // BASE_MAC_BIND_OBJC_BLOCK_H_
+#endif  // BASE_TEST_MOCK_CALLBACK_H_