Bug 1028588 - Fix dangerous public destructors in netwerk/ - r=mcmanus

netwerk/cache/nsDiskCacheDeviceSQL.cpp

@@ -280,6 +280,8 @@ public:
   {}
 
 private:
+  ~nsOfflineCacheDeviceInfo() {}
+
   nsOfflineCacheDevice* mDevice;
 };
 
@@ -347,6 +349,8 @@ nsOfflineCacheDeviceInfo::GetMaximumSize(uint32_t *aMaximumSize)
 
 class nsOfflineCacheBinding MOZ_FINAL : public nsISupports
 {
+  ~nsOfflineCacheBinding() {}
+
 public:
   NS_DECL_THREADSAFE_ISUPPORTS
 
@@ -514,6 +518,8 @@ CreateCacheEntry(nsOfflineCacheDevice *device,
 
 class nsOfflineCacheEntryInfo MOZ_FINAL : public nsICacheEntryInfo
 {
+  ~nsOfflineCacheEntryInfo() {}
+
 public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSICACHEENTRYINFO
@@ -892,6 +898,9 @@ nsOfflineCacheDevice::nsOfflineCacheDevice()
 {
 }
 
+nsOfflineCacheDevice::~nsOfflineCacheDevice()
+{}
+
 /* static */
 bool
 nsOfflineCacheDevice::GetStrictFileOriginPolicy()