Convert src/net to use std::string/char* for DictionaryValue keys.

net/http/http_net_log_params.h

 // Copyright (c) 2010 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.
 
 #ifndef NET_HTTP_HTTP_NET_LOG_PARAMS_H_
 #define NET_HTTP_HTTP_NET_LOG_PARAMS_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 10 matching lines @@
 class NetLogHttpRequestParameter : public NetLog::EventParameters {
  public:
   NetLogHttpRequestParameter(const std::string& line,
                              const HttpRequestHeaders& headers)
       : line_(line) {
     headers_.CopyFrom(headers);
   }
 
   Value* ToValue() const {
     DictionaryValue* dict = new DictionaryValue();
-    dict->SetString(L"line", line_);
+    dict->SetString("line", line_);
     ListValue* headers = new ListValue();
     HttpRequestHeaders::Iterator iterator(headers_);
     while (iterator.GetNext()) {
       headers->Append(
           new StringValue(StringPrintf("%s: %s",
                                        iterator.name().c_str(),
                                        iterator.value().c_str())));
     }
-    dict->Set(L"headers", headers);
+    dict->Set("headers", headers);
     return dict;
   }
 
  private:
   ~NetLogHttpRequestParameter() {}
 
   const std::string line_;
   HttpRequestHeaders headers_;
 
   DISALLOW_COPY_AND_ASSIGN(NetLogHttpRequestParameter);
 };
 
 class NetLogHttpResponseParameter : public NetLog::EventParameters {
  public:
   explicit NetLogHttpResponseParameter(
       const scoped_refptr<HttpResponseHeaders>& headers)
       : headers_(headers) {}
 
   Value* ToValue() const {
     DictionaryValue* dict = new DictionaryValue();
     ListValue* headers = new ListValue();
     headers->Append(new StringValue(headers_->GetStatusLine()));
     void* iterator = NULL;
     std::string name;
     std::string value;
     while (headers_->EnumerateHeaderLines(&iterator, &name, &value)) {
       headers->Append(
           new StringValue(StringPrintf("%s: %s", name.c_str(), value.c_str())));
     }
-    dict->Set(L"headers", headers);
+    dict->Set("headers", headers);
     return dict;
   }
 
  private:
   ~NetLogHttpResponseParameter() {}
 
   const scoped_refptr<HttpResponseHeaders> headers_;
 
   DISALLOW_COPY_AND_ASSIGN(NetLogHttpResponseParameter);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NET_LOG_PARAMS_H_