DevToolsManagerDelegate: parse all "emulateNetworkConditions" parameters

chrome/browser/devtools/devtools_network_conditions.cc

 // Copyright 2014 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 "chrome/browser/devtools/devtools_network_conditions.h"
 
 #include "url/gurl.h"
 
 DevToolsNetworkConditions::DevToolsNetworkConditions(
-    const std::vector<std::string>& domains)
-    : domains_(domains){
+    const std::vector<std::string>& domains,
+    double maximal_throughput)
+    : domains_(domains),
+      maximal_throughput_(maximal_throughput) {
 }
 
 DevToolsNetworkConditions::~DevToolsNetworkConditions() {
 }
 
 bool DevToolsNetworkConditions::HasMatchingDomain(const GURL& url) const {
   Domains::const_iterator domain = domains_.begin();
   if (domain == domains_.end())
     return true;
   for (; domain != domains_.end(); ++domain) {
     if (url.DomainIs(domain->data()))
       return true;
   }
   return false;
 }
 
 bool DevToolsNetworkConditions::IsOffline() const {
-  return true;
+  return maximal_throughput_ == 0.0;
 }
+
+bool DevToolsNetworkConditions::IsThrottling() const {
+  return maximal_throughput_ != 0.0;
+}