Track SimpleCache memory usage in net/ MemoryDumpProvider

net/disk_cache/simple/simple_index.h

Index: net/disk_cache/simple/simple_index.h
diff --git a/net/disk_cache/simple/simple_index.h b/net/disk_cache/simple/simple_index.h
index 1adb0ecc48a3f4e177fc392eb0b1726a5e1d9d1c..7a89b561fb353674dcf13375e38dc3ac4c89c8fc 100644
--- a/net/disk_cache/simple/simple_index.h
+++ b/net/disk_cache/simple/simple_index.h
@@ -58,6 +58,9 @@ class NET_EXPORT_PRIVATE EntryMetadata {
   void Serialize(base::Pickle* pickle) const;
   bool Deserialize(base::PickleIterator* it);
 
+  // Returns the estimate of dynamically allocated memory in bytes.
+  size_t EstimateMemoryUsage() const;
+
   static base::TimeDelta GetLowerEpsilonForTimeComparisons() {
     return base::TimeDelta::FromSeconds(1);
   }
@@ -166,6 +169,9 @@ class NET_EXPORT_PRIVATE SimpleIndex
 
   IndexInitMethod init_method() const { return init_method_; }
 
+  // Returns the estimate of dynamically allocated memory in bytes.
+  size_t EstimateMemoryUsage() const;
+
  private:
   friend class SimpleIndexTest;
   FRIEND_TEST_ALL_PREFIXES(SimpleIndexTest, IndexSizeCorrectOnMerge);