Update from https://crrev.com/308996

net/proxy/proxy_resolver_v8.cc

 // 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.
 
 #include "net/proxy/proxy_resolver_v8.h"
 
 #include <algorithm>
 #include <cstdio>
 
 #include "base/basictypes.h"
@@ skipping 321 matching lines @@
          (address.size() == 16 && prefix.size() == 16));
 
   return IPNumberMatchesPrefix(address, prefix, prefix_length_in_bits);
 }
 
 // Consider only single component domains like 'foo' as plain host names.
 bool IsPlainHostName(const std::string& hostname_utf8) {
   if (hostname_utf8.find('.') != std::string::npos)
     return false;
 
-  // IPv6 addresses may not contain periods, however are not be considered a
-  // plain host name.
+  // IPv6 literals might not contain any periods, however are not considered
+  // plain host names.
   IPAddressNumber unused;
   return !ParseIPLiteralToNumber(hostname_utf8, &unused);
 }
 
 }  // namespace
 
 // ProxyResolverV8::Context ---------------------------------------------------
 
 class ProxyResolverV8::Context {
  public:
@@ skipping 479 matching lines @@
     return 0;
 
   v8::Locker locked(g_proxy_resolver_isolate_->isolate());
   v8::Isolate::Scope isolate_scope(g_proxy_resolver_isolate_->isolate());
   v8::HeapStatistics heap_statistics;
   g_proxy_resolver_isolate_->isolate()->GetHeapStatistics(&heap_statistics);
   return heap_statistics.used_heap_size();
 }
 
 }  // namespace net