1 files changed, 23 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheResource.cpp b/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheResource.cpp
index 4beb76a93..03c5c8359 100644
--- a/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheResource.cpp
+++ b/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheResource.cpp
@@ -35,6 +35,7 @@ ApplicationCacheResource::ApplicationCacheResource(const KURL& url, const Resour
     : SubstituteResource(url, response, data)
     , m_type(type)
     , m_storageID(0)
+    , m_estimatedSizeInStorage(0)
 {
 }
 
@@ -44,6 +45,28 @@ void ApplicationCacheResource::addType(unsigned type)
     m_type |= type; 
 }
 
+int64_t ApplicationCacheResource::estimatedSizeInStorage()
+{
+    if (m_estimatedSizeInStorage)
+      return m_estimatedSizeInStorage;
+
+    if (data())
+        m_estimatedSizeInStorage = data()->size();
+
+    HTTPHeaderMap::const_iterator end = response().httpHeaderFields().end();
+    for (HTTPHeaderMap::const_iterator it = response().httpHeaderFields().begin(); it != end; ++it)
+        m_estimatedSizeInStorage += (it->first.length() + it->second.length() + 2) * sizeof(UChar);
+
+    m_estimatedSizeInStorage += url().string().length() * sizeof(UChar);
+    m_estimatedSizeInStorage += sizeof(int); // response().m_httpStatusCode
+    m_estimatedSizeInStorage += response().url().string().length() * sizeof(UChar);
+    m_estimatedSizeInStorage += sizeof(unsigned); // dataId
+    m_estimatedSizeInStorage += response().mimeType().length() * sizeof(UChar);
+    m_estimatedSizeInStorage += response().textEncodingName().length() * sizeof(UChar);
+
+    return m_estimatedSizeInStorage;
+}
+
 #ifndef NDEBUG
 void ApplicationCacheResource::dumpType(unsigned type)
 {