Remove void** from disk_cache interface.

net/url_request/view_cache_helper.cc

Index: net/url_request/view_cache_helper.cc
diff --git a/net/url_request/view_cache_helper.cc b/net/url_request/view_cache_helper.cc
index 346c7cdb50c6c60fd46f8bef5f9a37ef57af6f4b..36d3ae5ce0d89d26b8a422b367c2da11900bb232 100644
--- a/net/url_request/view_cache_helper.cc
+++ b/net/url_request/view_cache_helper.cc
@@ -45,7 +45,6 @@ ViewCacheHelper::ViewCacheHelper()
     : context_(NULL),
       disk_cache_(NULL),
       entry_(NULL),
-      iter_(NULL),
       buf_len_(0),
       index_(0),
       data_(NULL),
@@ -242,9 +241,11 @@ int ViewCacheHelper::DoGetBackendComplete(int result) {
 
 int ViewCacheHelper::DoOpenNextEntry() {
   next_state_ = STATE_OPEN_NEXT_ENTRY_COMPLETE;
-  return disk_cache_->OpenNextEntry(
-      &iter_, &entry_,
-      base::Bind(&ViewCacheHelper::OnIOComplete, base::Unretained(this)));
+  if (!iter_)
+    iter_ = disk_cache_->CreateIterator();
+  return
+      iter_->OpenNextEntry(&entry_, base::Bind(&ViewCacheHelper::OnIOComplete,
+                                               base::Unretained(this)));
 }
 
 int ViewCacheHelper::DoOpenNextEntryComplete(int result) {