Avoid heap allocations in IPAddress

content/public/common/common_param_traits.cc

Index: content/public/common/common_param_traits.cc
diff --git a/content/public/common/common_param_traits.cc b/content/public/common/common_param_traits.cc
index 286e6621cc6212cf727ba636c44d4df4a0ba6ceb..d11e66c8cd57715095feb22d9fc2224cd34c6d66 100644
--- a/content/public/common/common_param_traits.cc
+++ b/content/public/common/common_param_traits.cc
@@ -124,11 +124,11 @@ void ParamTraits<net::IPEndPoint>::Log(const param_type& p, std::string* l) {
 
 void ParamTraits<net::IPAddress>::GetSize(base::PickleSizer* s,
                                           const param_type& p) {
-  GetParamSize(s, p.bytes());
+  GetParamSize(s, p.BytesAsVector());

[eroman, 2017/05/12 23:25:04]

Can you improve the efficiency of this?
(Constructs a temporary vector, only to get the size).

[Ryan Hamilton, 2017/05/13 13:20:46]

Good point. Done.

 }
 
 void ParamTraits<net::IPAddress>::Write(base::Pickle* m, const param_type& p) {
-  WriteParam(m, p.bytes());
+  WriteParam(m, p.BytesAsVector());

[eroman, 2017/05/12 23:25:04]

Same here.

[Ryan Hamilton, 2017/05/13 13:20:46]

Done.

 }
 
 bool ParamTraits<net::IPAddress>::Read(const base::Pickle* m,