Simple: Move PVer4 related code from util.* to v4_protocol_manager_util.*

components/safe_browsing_db/v4_store.h

Index: components/safe_browsing_db/v4_store.h
diff --git a/components/safe_browsing_db/v4_store.h b/components/safe_browsing_db/v4_store.h
index 94621e5281cac0682e505c695513c4090bfb7b22..fd798883c0e34b4d070b42b7cbbcfc3b4ab04850 100644
--- a/components/safe_browsing_db/v4_store.h
+++ b/components/safe_browsing_db/v4_store.h
@@ -18,16 +18,6 @@ class V4Store;
 typedef base::Callback<void(std::unique_ptr<V4Store>)>
     UpdatedStoreReadyCallback;
 
-// The size of the hash prefix, in bytes. It should be between 4 to 32 (full
-// hash).
-typedef size_t PrefixSize;
-
-// A hash prefix sent by the SafeBrowsing PVer4 service.
-typedef std::string HashPrefix;
-
-// The sorted list of hash prefixes.
-typedef std::string HashPrefixes;
-
 // Stores the list of sorted hash prefixes, by size.
 // For instance: {4: ["abcd", "bcde", "cdef", "gggg"], 5: ["fffff"]}
 typedef base::hash_map<PrefixSize, HashPrefixes> HashPrefixMap;
@@ -38,9 +28,6 @@ typedef base::hash_map<PrefixSize, HashPrefixes> HashPrefixMap;
 // 3 hash prefixes of length 4, and 1 hash prefix of length 5.
 typedef base::hash_map<PrefixSize, HashPrefixes::const_iterator> IteratorMap;
 
-// A full SHA256 hash.
-typedef HashPrefix FullHash;
-
 // Enumerate different failure events while parsing the file read from disk for
 // histogramming purposes.  DO NOT CHANGE THE ORDERING OF THESE VALUES.
 enum StoreReadResult {