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

net/http/mock_http_cache.h

Index: net/http/mock_http_cache.h
diff --git a/net/http/mock_http_cache.h b/net/http/mock_http_cache.h
index ca0730429f7b401e18987acdf31a3859991b62f0..d768d43608f4408bbc3786a179d3bf79c8199862 100644
--- a/net/http/mock_http_cache.h
+++ b/net/http/mock_http_cache.h
@@ -64,6 +64,9 @@ class MockDiskEntry : public disk_cache::Entry,
   void CancelSparseIO() override;
   int ReadyForSparseIO(const CompletionCallback& completion_callback) override;
 
+  uint8_t memory_entry_data() const { return memory_entry_data_; }
+  void set_memory_entry_data(uint8_t val) { memory_entry_data_ = val; }
+
   // Fail most subsequent requests.
   void set_fail_requests() { fail_requests_ = true; }
 
@@ -98,6 +101,7 @@ class MockDiskEntry : public disk_cache::Entry,
 
   std::string key_;
   std::vector<char> data_[kNumCacheEntryDataIndices];
+  unsigned char memory_entry_data_;
   int test_mode_;
   bool doomed_;
   bool sparse_;
@@ -137,6 +141,8 @@ class MockDiskCache : public disk_cache::Backend {
   size_t DumpMemoryStats(
       base::trace_event::ProcessMemoryDump* pmd,
       const std::string& parent_absolute_name) const override;
+  uint8_t GetMemoryEntryData(const std::string& key) override;
+  void SetMemoryEntryData(const std::string& key, uint8_t data) override;
 
   // Returns number of times a cache entry was successfully opened.
   int open_count() const { return open_count_; }
@@ -153,6 +159,12 @@ class MockDiskCache : public disk_cache::Backend {
   // Makes sure that CreateEntry is not called twice for a given key.
   void set_double_create_check(bool value) { double_create_check_ = value; }
 
+  // Determines whether to provide the GetMemoryEntryData/SetMemoryEntryData
+  // interface.  Default is true
+  void set_support_memory_entry_data(bool value) {
+    support_memory_entry_data_ = value;
+  }
+
   // Makes all requests for data ranges to fail as not implemented.
   void set_fail_sparse_requests() { fail_sparse_requests_ = true; }
 
@@ -173,6 +185,7 @@ class MockDiskCache : public disk_cache::Backend {
   bool soft_failures_;
   bool double_create_check_;
   bool fail_sparse_requests_;
+  bool support_memory_entry_data_;

[gavinp, 2017/08/04 17:33:14]

This CL could be a good chance to switch to in-class member initialization
rather than the CTOR list. Same for the other class above.

[Maks Orlovich, 2017/08/23 18:52:06]

Not a fan of mixing in very wide-scale cleanups...

 };
 
 class MockBackendFactory : public HttpCache::BackendFactory {