Bug 1312954 - Part 4: Add a new function in nsICacheEntry to allow its loadInfoContext to be fetched. r=mayhemer

netwerk/cache2/CacheEntry.cpp

@@ -1552,6 +1552,18 @@ NS_IMETHODIMP CacheEntry::GetDiskStorageSizeInKB(uint32_t *aDiskStorageSize)
   return mFile->GetDiskStorageSizeInKB(aDiskStorageSize);
 }
 
+NS_IMETHODIMP CacheEntry::GetLoadContextInfo(nsILoadContextInfo** aInfo)
+{
+  nsCOMPtr<nsILoadContextInfo> info = CacheFileUtils::ParseKey(mStorageID);
+  if (!info) {
+    return NS_ERROR_FAILURE;
+  }
+
+  info.forget(aInfo);
+
+  return NS_OK;
+}
+
 // nsIRunnable
 
 NS_IMETHODIMP CacheEntry::Run()

netwerk/cache2/OldWrappers.h

@@ -135,6 +135,10 @@ public:
   {
     return mOldInfo->GetDataSize(aDataSize);
   }
+  NS_IMETHOD GetLoadContextInfo(nsILoadContextInfo** aInfo) override
+  {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
 
   NS_IMETHOD AsyncDoom(nsICacheEntryDoomCallback* listener) override;
   NS_IMETHOD GetPersistent(bool *aPersistToDisk) override;

netwerk/cache2/nsICacheEntry.idl

@@ -12,6 +12,7 @@ interface nsICacheEntryDoomCallback;
 interface nsICacheListener;
 interface nsIFile;
 interface nsICacheEntryMetaDataVisitor;
+interface nsILoadContextInfo;
 
 [scriptable, uuid(607c2a2c-0a48-40b9-a956-8cf2bb9857cf)]
 interface nsICacheEntry : nsISupports
@@ -233,6 +234,11 @@ interface nsICacheEntry : nsISupports
    */
   nsIInputStream openAlternativeInputStream(in ACString type);
 
+  /**
+   * Get the nsILoadContextInfo of the cache entry
+   */
+  readonly attribute nsILoadContextInfo loadContextInfo;
+
   /****************************************************************************
    * The following methods might be added to some nsICacheEntryInternal
    * interface since we want to remove them as soon as the old cache backend is