win vs2015: fix variable shadowing warnings in net/quic

net/quic/crypto/cert_compressor.cc

 // Copyright (c) 2013 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.
 
 #include "net/quic/crypto/cert_compressor.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/quic/quic_utils.h"
 #include "third_party/zlib/zlib.h"
@@ skipping 177 matching lines @@
 
   for (vector<string>::const_iterator i = certs.begin();
        i != certs.end(); ++i) {
     CertEntry entry;
 
     if (cached_valid) {
       bool cached = false;
 
       uint64 hash = QuicUtils::FNV1a_64_Hash(i->data(), i->size());
       // This assumes that the machine is little-endian.
-      for (size_t i = 0; i < client_cached_cert_hashes.size();
-           i += sizeof(uint64)) {
+      for (size_t j = 0; j < client_cached_cert_hashes.size();
+           j += sizeof(uint64)) {
         uint64 cached_hash;
-        memcpy(&cached_hash, client_cached_cert_hashes.data() + i,
+        memcpy(&cached_hash, client_cached_cert_hashes.data() + j,
                sizeof(uint64));
         if (hash != cached_hash) {
           continue;
         }
 
         entry.type = CertEntry::CACHED;
         entry.hash = hash;
         entries.push_back(entry);
         cached = true;
         break;
@@ skipping 425 matching lines @@
   }
 
   if (!uncompressed.empty()) {
     return false;
   }
 
   return true;
 }
 
 }  // namespace net