Remove safe-browsing code to fix up injected prefixes.

chrome/browser/safe_browsing/prefix_set.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.
 //
 // A read-only set implementation for |SBPrefix| items.  Prefixes are
 // sorted and stored as 16-bit deltas from the previous prefix.  An
 // index structure provides quick random access, and also handles
 // cases where 16 bits cannot encode a delta.
 //
 // For example, the sequence {20, 25, 41, 65432, 150000, 160000} would
@@ skipping 74 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(PrefixSetTest, IntMinMax);
   FRIEND_TEST_ALL_PREFIXES(PrefixSetTest, OneElement);
   FRIEND_TEST_ALL_PREFIXES(PrefixSetTest, ReadWrite);
   FRIEND_TEST_ALL_PREFIXES(PrefixSetTest, ReadWriteSigned);
   FRIEND_TEST_ALL_PREFIXES(PrefixSetTest, Version3);
 
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, BasicStore);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, DeleteChunks);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, DetectsCorruption);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, Empty);
-  FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, KnockoutPrefixVolunteers);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, PrefixMinMax);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, SubKnockout);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, Version7);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingStoreFileTest, Version8);
 
   // Maximum number of consecutive deltas to encode before generating
   // a new index entry.  This helps keep the worst-case performance
   // for |Exists()| under control.
   static const size_t kMaxRun = 100;
 
@@ skipping 70 matching lines @@
   // Buffers prefixes until enough are avaliable to emit a run.
   std::vector<SBPrefix> buffer_;
 
   // The PrefixSet being built.
   scoped_ptr<PrefixSet> prefix_set_;
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_PREFIX_SET_H_