Fixed first pass at adding http/backend cache events to the NetLog. ...

net/disk_cache/backend_impl.h

 // Copyright (c) 2006-2010 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.
 
 // See net/disk_cache/disk_cache.h for the public interface of the cache.
 
 #ifndef NET_DISK_CACHE_BACKEND_IMPL_H_
 #define NET_DISK_CACHE_BACKEND_IMPL_H_
 #pragma once
 
 #include "base/file_path.h"
 #include "base/hash_tables.h"
 #include "base/timer.h"
 #include "net/disk_cache/block_files.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/disk_cache/eviction.h"
 #include "net/disk_cache/in_flight_backend_io.h"
 #include "net/disk_cache/rankings.h"
 #include "net/disk_cache/stats.h"
 #include "net/disk_cache/trace.h"
 
+namespace net {
+class NetLog;
+}  // namespace net
+
 namespace disk_cache {
 
 enum BackendFlags {
   kNone = 0,
   kMask = 1,                    // A mask (for the index table) was specified.
   kMaxSize = 1 << 1,            // A maximum size was provided.
   kUnitTestMode = 1 << 2,       // We are modifying the behavior for testing.
   kUpgradeMode = 1 << 3,        // This is the upgrade tool (dump).
   kNewEviction = 1 << 4,        // Use of new eviction was specified.
   kNoRandom = 1 << 5,           // Don't add randomness to the behavior.
   kNoLoadProtection = 1 << 6,   // Don't act conservatively under load.
   kNoBuffering = 1 << 7         // Disable extended IO buffering.
 };
 
 // This class implements the Backend interface. An object of this
 // class handles the operations of the cache for a particular profile.
 class BackendImpl : public Backend {
   friend class Eviction;
  public:
-  BackendImpl(const FilePath& path, base::MessageLoopProxy* cache_thread);
+  BackendImpl(const FilePath& path, base::MessageLoopProxy* cache_thread,
+              net::NetLog* net_log);
   // mask can be used to limit the usable size of the hash table, for testing.
   BackendImpl(const FilePath& path, uint32 mask,
-              base::MessageLoopProxy* cache_thread);
+              base::MessageLoopProxy* cache_thread, net::NetLog* net_log);
   ~BackendImpl();
 
   // Returns a new backend with the desired flags. See the declaration of
   // CreateCacheBackend().
   static int CreateBackend(const FilePath& full_path, bool force,
                            int max_bytes, net::CacheType type,
                            uint32 flags, base::MessageLoopProxy* thread,
-                           Backend** backend, CompletionCallback* callback);
+                           net::NetLog* net_log, Backend** backend,
+                           CompletionCallback* callback);
 
   // Performs general initialization for this current instance of the cache.
   int Init(CompletionCallback* callback);
 
   // Backend interface.
   virtual int32 GetEntryCount() const;
   virtual int OpenEntry(const std::string& key, Entry** entry,
                         CompletionCallback* callback);
   virtual int CreateEntry(const std::string& key, Entry** entry,
                           CompletionCallback* callback);
@@ skipping 287 matching lines @@
   uint32 user_flags_;  // Flags set by the user.
   bool init_;  // controls the initialization of the system.
   bool restarted_;
   bool unit_test_;
   bool read_only_;  // Prevents updates of the rankings data (used by tools).
   bool disabled_;
   bool new_eviction_;  // What eviction algorithm should be used.
   bool first_timer_;  // True if the timer has not been called.
   bool throttle_requests_;
 
+  net::NetLog* net_log_;
+
   Stats stats_;  // Usage statistcs.
   base::RepeatingTimer<BackendImpl> timer_;  // Usage timer.
   base::WaitableEvent done_;  // Signals the end of background work.
   scoped_refptr<TraceObject> trace_object_;  // Inits internal tracing.
   ScopedRunnableMethodFactory<BackendImpl> factory_;
   base::WeakPtrFactory<BackendImpl> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackendImpl);
 };
 
 // Returns the prefered max cache size given the available disk space.
 int PreferedCacheSize(int64 available);
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_BACKEND_IMPL_H_