Introduce RunLoop::Delegate splitting RunLoop/MessageLoop some more.

content/public/test/cache_test_util.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_BROWSING_DATA_CACHE_TEST_UTIL_H_
 #define CONTENT_BROWSER_BROWSING_DATA_CACHE_TEST_UTIL_H_
 
 #include <set>
 #include <vector>
+
 #include "base/run_loop.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/storage_partition.h"
 #include "net/disk_cache/disk_cache.h"
 
+namespace base {
+class WaitableEvent;
+}
+
 namespace content {
 
 // A util class that can be used to create and retreive cache entries.
 class CacheTestUtil {
  public:
   explicit CacheTestUtil(StoragePartition* partition_);
 
   ~CacheTestUtil();
 
   void CreateCacheEntries(const std::set<std::string>& keys);
@@ skipping 28 matching lines @@
   disk_cache::Entry* current_entry_;
   std::vector<std::string> keys_;
 
   std::unique_ptr<base::WaitableEvent> waitable_event_;
   int remaining_tasks_;
 };
 
 }  // content
 
 #endif  // CONTENT_BROWSER_BROWSING_DATA_CACHE_TEST_UTIL_H_