Improve memory estimate of SpdySessionPool in net/ MemoryDumpProvider.

net/spdy/spdy_framer.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SPDY_SPDY_FRAMER_H_
 #define NET_SPDY_SPDY_FRAMER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 510 matching lines @@
 
   void SetEncoderHeaderTableDebugVisitor(
       std::unique_ptr<HpackHeaderTable::DebugVisitorInterface> visitor);
 
   // For use in SpdyFramerDecoderAdapter implementations; returns a HPACK
   // decoder to be used.
   HpackDecoderInterface* GetHpackDecoderForAdapter() {
     return GetHpackDecoder();
   }
 
+  // Returns the estimate of dynamically allocated memory in bytes.
+  size_t EstimateMemoryUsage() const;
+
  protected:
   friend class BufferedSpdyFramer;
   friend class HttpNetworkLayer;  // This is temporary for the server.
   friend class HttpNetworkTransactionTest;
   friend class HttpProxyClientSocketPoolTest;
   friend class SpdyHttpStreamTest;
   friend class SpdyNetworkTransactionTest;
   friend class SpdyProxyClientSocketTest;
   friend class SpdySessionTest;
   friend class SpdyStreamTest;
   friend class test::TestSpdyVisitor;
   friend class test::SpdyFramerPeer;
 
  private:
   class CharBuffer {
    public:
     explicit CharBuffer(size_t capacity);
     ~CharBuffer();
 
     void CopyFrom(const char* data, size_t size);
     void Rewind();
 
     const char* data() const { return buffer_.get(); }
     size_t len() const { return len_; }
 
+    size_t EstimateMemoryUsage() const;
+
    private:
     std::unique_ptr<char[]> buffer_;
     size_t capacity_;
     size_t len_;
   };
 
   // Scratch space necessary for processing SETTINGS frames.
   struct SpdySettingsScratch {
     SpdySettingsScratch();
     void Reset();
+    size_t EstimateMemoryUsage() const;
 
     // Buffer contains up to one complete key/value pair.
     CharBuffer buffer;
 
     // The ID of the last setting that was processed in the current SETTINGS
     // frame. Used for detecting out-of-order or duplicate keys within a
     // settings frame. Set to -1 before first key/value pair is processed.
     int last_setting_id;
   };
 
@@ skipping 168 matching lines @@
   // rather than reading all available input.
   bool process_single_input_frame_ = false;
 
   // Latched value of FLAGS_chromium_http2_flag_remove_rewritelength.
   bool skip_rewritelength_ = false;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_FRAMER_H_