Disk cache: Switch the disk cache to use the cache_thread....

net/disk_cache/disk_cache_test_base.h

Index: net/disk_cache/disk_cache_test_base.h
===================================================================
--- net/disk_cache/disk_cache_test_base.h	(revision 51874)
+++ net/disk_cache/disk_cache_test_base.h	(working copy)
@@ -36,7 +36,7 @@
       : cache_(NULL), cache_impl_(NULL), mem_cache_(NULL), mask_(0), size_(0),
         memory_only_(false), implementation_(false), force_creation_(false),
         new_eviction_(false), first_cleanup_(true), integrity_(true),
-        cache_thread_("CacheThread") {}
+        use_current_thread_(false), cache_thread_("CacheThread") {}
 
   void InitCache();
   virtual void TearDown();
@@ -75,6 +75,10 @@
     integrity_ = false;
   }
 
+  void UseCurrentThread() {
+    use_current_thread_ = true;
+  }
+
   // Utility methods to access the cache and wait for each operation to finish.
   int OpenEntry(const std::string& key, disk_cache::Entry** entry);
   int CreateEntry(const std::string& key, disk_cache::Entry** entry);
@@ -84,6 +88,7 @@
                          const base::Time end_time);
   int DoomEntriesSince(const base::Time initial_time);
   int OpenNextEntry(void** iter, disk_cache::Entry** next_entry);
+  void FlushQueueForTest();
 
   // cache_ will always have a valid object, regardless of how the cache was
   // initialized. The implementation pointers can be NULL.
@@ -99,6 +104,7 @@
   bool new_eviction_;
   bool first_cleanup_;
   bool integrity_;
+  bool use_current_thread_;
   // This is intentionally left uninitialized, to be used by any test.
   bool success_;