diff -r 000000000000 -r 6474c204b198 netwerk/cache2/CacheObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/cache2/CacheObserver.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef CacheObserver__h__
+#define CacheObserver__h__
+
+#include "nsIObserver.h"
+#include "nsIFile.h"
+#include "nsCOMPtr.h"
+#include "nsWeakReference.h"
+#include <algorithm>
+
+namespace mozilla {
+namespace net {
+
+class CacheObserver : public nsIObserver
+                    , public nsSupportsWeakReference
+{
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  virtual ~CacheObserver() {}
+
+  static nsresult Init();
+  static nsresult Shutdown();
+  static CacheObserver* Self() { return sSelf; }
+
+  // Access to preferences
+  static bool const UseNewCache();
+  static bool const UseDiskCache()
+    { return sUseDiskCache; }
+  static bool const UseMemoryCache()
+    { return sUseMemoryCache; }
+  static uint32_t const MetadataMemoryLimit() // result in bytes.
+    { return sMetadataMemoryLimit << 10; }
+  static uint32_t const MemoryCacheCapacity(); // result in bytes.
+  static uint32_t const DiskCacheCapacity() // result in bytes.
+    { return sDiskCacheCapacity << 10; }
+  static void SetDiskCacheCapacity(uint32_t); // parameter in bytes.
+  static bool const SmartCacheSizeEnabled()
+    { return sSmartCacheSizeEnabled; }
+  static uint32_t const MaxMemoryEntrySize() // result in bytes.
+    { return sMaxMemoryEntrySize << 10; }
+  static uint32_t const MaxDiskEntrySize() // result in bytes.
+    { return sMaxDiskEntrySize << 10; }
+  static uint32_t const CompressionLevel()
+    { return sCompressionLevel; }
+  static uint32_t const HalfLifeSeconds()
+    { return sHalfLifeHours * 60 * 60; }
+  static int32_t const HalfLifeExperiment()
+    { return sHalfLifeExperiment; }
+  static bool const ClearCacheOnShutdown()
+    { return sSanitizeOnShutdown && sClearCacheOnShutdown; }
+  static void ParentDirOverride(nsIFile ** aDir);
+
+  static bool const EntryIsTooBig(int64_t aSize, bool aUsingDisk);
+
+private:
+  static CacheObserver* sSelf;
+
+  void StoreDiskCacheCapacity();
+  void AttachToPreferences();
+  void SchduleAutoDelete();
+
+  static uint32_t sUseNewCache;
+  static bool sUseMemoryCache;
+  static bool sUseDiskCache;
+  static uint32_t sMetadataMemoryLimit;
+  static int32_t sMemoryCacheCapacity;
+  static int32_t sAutoMemoryCacheCapacity;
+  static uint32_t sDiskCacheCapacity;
+  static bool sSmartCacheSizeEnabled;
+  static uint32_t sMaxMemoryEntrySize;
+  static uint32_t sMaxDiskEntrySize;
+  static uint32_t sCompressionLevel;
+  static uint32_t sHalfLifeHours;
+  static int32_t sHalfLifeExperiment;
+  static bool sSanitizeOnShutdown;
+  static bool sClearCacheOnShutdown;
+
+  // Non static properties, accessible via sSelf
+  nsCOMPtr<nsIFile> mCacheParentDirectoryOverride;
+};
+
+} // net
+} // mozilla
+
+#endif