Rename domain_security_preload_generator.

net/tools/transport_security_state_generator/huffman/huffman_builder.h

 // Copyright (c) 2016 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_TOOLS_DOMAIN_SECURITY_PRELOAD_GENERATOR_HUFFMAN_FREQUENCY_TRACKER_H_
-#define NET_TOOLS_DOMAIN_SECURITY_PRELOAD_GENERATOR_HUFFMAN_FREQUENCY_TRACKER_H_
+#ifndef NET_TOOLS_TRANSPORT_SECURITY_STATE_GENERATOR_HUFFMAN_BUILDER_H_
+#define NET_TOOLS_TRANSPORT_SECURITY_STATE_GENERATOR_HUFFMAN_BUILDER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <vector>
 
 namespace net {
 
 namespace transport_security_state {
 
 namespace {
 class HuffmanNode;
 }  // namespace
 
 struct HuffmanRepresentation {
   uint32_t bits;
   uint32_t number_of_bits;
 };
 
 // A HuffmanRepresentationTable maps the original characters to their Huffman
 // representation. The Huffman representation consists of the number of bits
 // needed to represent the character and the actual bits.
 using HuffmanRepresentationTable = std::map<uint8_t, HuffmanRepresentation>;
 using HuffmanRepresentationPair = std::pair<uint8_t, HuffmanRepresentation>;
 
 // This class tracks the number of times each character is used and calculates
 // a space efficient way to represent all tracked characters by constructing a
 // Huffman tree based on the number of times each character is seen.
-class HuffmanFrequencyTracker {
+class HuffmanBuilder {
  public:
-  HuffmanFrequencyTracker();
-  ~HuffmanFrequencyTracker();
+  HuffmanBuilder();
+  ~HuffmanBuilder();
 
   // Will increase the count for |character| by one, indicating it has been
   // used.
   void RecordUsage(uint8_t character);
 
   // Returns a HuffmanRepresentationTable based on the usage data collected
   // through RecordUsage().
   HuffmanRepresentationTable ToTable();
 
   // Outputs the Huffman representation as a vector of uint8_t's in a format
@@ skipping 24 matching lines @@
 
   // Holds usage information for the tracked characters. Maps the character to
   // the number of times its usage has been recorded through RecordUsage().
   std::map<uint8_t, uint32_t> counts_;
 };
 
 }  // namespace transport_security_state
 
 }  // namespace net
 
-#endif  // NET_TOOLS_DOMAIN_SECURITY_PRELOAD_GENERATOR_HUFFMAN_FREQUENCY_TRACKER_H_
+#endif  // NET_TOOLS_TRANSPORT_SECURITY_STATE_GENERATOR_HUFFMAN_BUILDER_H_