Interface for associating in-memory hint bytes with disk cache entries.

net/http/mock_http_cache.cc

Index: net/http/mock_http_cache.cc
diff --git a/net/http/mock_http_cache.cc b/net/http/mock_http_cache.cc
index bf81c4ee1eea6f6c14f5ff5544c7a31184b507cc..a8ea3a4b06929f1e6cca8e0567f9e152bd5d9e01 100644
--- a/net/http/mock_http_cache.cc
+++ b/net/http/mock_http_cache.cc
@@ -68,6 +68,7 @@ struct MockDiskEntry::CallbackInfo {
 
 MockDiskEntry::MockDiskEntry(const std::string& key)
     : key_(key),
+      memory_entry_data_(0),
       doomed_(false),
       sparse_(false),
       fail_requests_(false),
@@ -394,6 +395,7 @@ MockDiskCache::MockDiskCache()
       soft_failures_(false),
       double_create_check_(true),
       fail_sparse_requests_(false),
+      support_memory_entry_data_(true),
       defer_op_(MockDiskEntry::DEFER_NONE),
       resume_return_code_(0) {}
 
@@ -552,6 +554,22 @@ size_t MockDiskCache::DumpMemoryStats(
   return 0u;
 }
 
+uint8_t MockDiskCache::GetMemoryEntryData(const std::string& key) {
+  if (!support_memory_entry_data_)
+    return 0;
+
+  EntryMap::iterator it = entries_.find(key);
+  if (it != entries_.end())
+    return it->second->memory_entry_data();
+  return 0;
+}
+
+void MockDiskCache::SetMemoryEntryData(const std::string& key, uint8_t data) {
+  EntryMap::iterator it = entries_.find(key);
+  if (it != entries_.end())
+    it->second->set_memory_entry_data(data);
+}
+
 void MockDiskCache::ReleaseAll() {
   for (auto entry : entries_)
     entry.second->Release();