Inform disk cache of WebKit memory cache hits.

net/disk_cache/backend_impl.cc

Index: net/disk_cache/backend_impl.cc
diff --git a/net/disk_cache/backend_impl.cc b/net/disk_cache/backend_impl.cc
index b03ecda7bc2bb0ee54fb0645a153e5f567e7246e..295330e9baaa9f2f6e2f4e7414c8294725616063 100644
--- a/net/disk_cache/backend_impl.cc
+++ b/net/disk_cache/backend_impl.cc
@@ -682,6 +682,15 @@ void BackendImpl::SyncEndEnumeration(void* iter) {
       reinterpret_cast<Rankings::Iterator*>(iter));
 }
 
+void BackendImpl::SyncOnExternalCacheHit(const std::string& key) {
+  uint32 hash = Hash(key);
+  bool error;
+  EntryImpl* cache_entry = MatchEntry(key, hash, false, Addr(), &error);
+  if (cache_entry) {
+    UpdateRank(cache_entry, false);
+  }

[rvargas (doing something else), 2011/07/28 22:27:01]

Leaking the entry.

We should also check that this is an ENTRY_NORMAL before calling UpdateRank

+}
+
 EntryImpl* BackendImpl::OpenEntryImpl(const std::string& key) {
   if (disabled_)
     return NULL;
@@ -1356,6 +1365,10 @@ void BackendImpl::GetStats(StatsItems* stats) {
   stats_.GetItems(stats);
 }
 
+void BackendImpl::OnExternalCacheHit(const std::string& key) {
+  background_queue_.OnExternalCacheHit(key);
+}
+
 // ------------------------------------------------------------------------
 
 // We just created a new file so we're going to write the header and set the