predictors: Pass manifests from Bork to store in ResourcePrefetchPredictor.

chrome/browser/predictors/resource_prefetch_predictor_tables.h

 // Copyright 2014 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 CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_TABLES_H_
 #define CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_TABLES_H_
 
 #include <cstddef>
 #include <map>
 #include <memory>
@@ skipping 86 matching lines @@
   // Computes score of |data|.
   static float ComputeResourceScore(const ResourceData& data);
 
   // Removes the redirects with more than |max_consecutive_misses| consecutive
   // misses from |data|.
   static void TrimRedirects(RedirectData* data, size_t max_consecutive_misses);
 
   // The maximum length of the string that can be stored in the DB.
   static constexpr size_t kMaxStringLength = 1024;
 
+  // The maximum size in bytes of the manifest that can be stored in the DB.
+  static constexpr size_t kMaxManifestByteSize = 16384;  // 16 KB

[Benoit L, 2017/03/20 16:51:53]

tiny nit: 16 * (1 << 10)?
Then you can drop the comment.

Or drop the comment altogether.

[alexilin, 2017/03/21 09:50:34]

Done.

+
  protected:
   // Protected for testing. Use PredictorDatabase::resource_prefetch_tables()
   // instead of this constructor.
   ResourcePrefetchPredictorTables();
   ~ResourcePrefetchPredictorTables() override;
 
  private:
   // Represents the type of information that is stored in prefetch database.
   enum class PrefetchDataType { RESOURCE, REDIRECT, MANIFEST };
 
@@ skipping 41 matching lines @@
 
   static const char* GetTableName(PrefetchKeyType key_type,
                                   PrefetchDataType data_type);
 
   DISALLOW_COPY_AND_ASSIGN(ResourcePrefetchPredictorTables);
 };
 
 }  // namespace predictors
 
 #endif  // CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_TABLES_H_