Disk cache: Remove remaining uses of RankingsNode.pointer.

We now have a map of open entries so we don't need to
do a lookup through the rankings node anymore. This
simplifies the 64 bit version of the code.

BUG=17881
TEST=unittests

Review URL: http://codereview.chromium.org/159643

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@22074 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 1 deletions

diff --git a/net/disk_cache/storage_block-inl.h b/net/disk_cache/storage_block-inl.h
index 909b717..5e026a7 100644
--- a/net/disk_cache/storage_block-inl.h
+++ b/net/disk_cache/storage_block-inl.h
@@ -72,10 +72,16 @@ template<typename T> void  StorageBlock<T>::Discard() {
   DeleteData();
   data_ = NULL;
   modified_ = false;
-  own_data_ = false;
   extended_ = false;
 }
 
+template<typename T> void  StorageBlock<T>::StopSharingData() {
+  if (!data_ || own_data_)
+    return;
+  DCHECK(!modified_);
+  data_ = NULL;
+}
+
 template<typename T> void StorageBlock<T>::set_modified() {
   DCHECK(data_);
   modified_ = true;
@@ -91,6 +97,10 @@ template<typename T> bool StorageBlock<T>::HasData() const {
   return (NULL != data_);
 }
 
+template<typename T> bool StorageBlock<T>::own_data() const {
+  return own_data_;
+}
+
 template<typename T> const Addr StorageBlock<T>::address() const {
   return address_;
 }