Fix memory leak in NetworkThrottlingObserverTest

chrome/browser/chromeos/net/network_throttling_observer.cc

 // Copyright 2016 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/chromeos/net/network_throttling_observer.h"
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
@@ skipping 29 matching lines @@
     const std::string& pref_name) {
   DCHECK(pref_name == prefs::kNetworkThrottlingEnabled);
 
   const base::DictionaryValue* throttling_policy =
       local_state_->GetDictionary(prefs::kNetworkThrottlingEnabled);
 
   // Default is to disable throttling if the policy is not found.
   bool enabled = false;
   uint32_t upload_rate = 0, download_rate = 0;
   if (throttling_policy) {
-    int upload_rate_read, download_rate_read;
+    int upload_rate_read = 0;
+    int download_rate_read = 0;
 
     throttling_policy->GetBoolean("enabled", &enabled);
 
     if (throttling_policy->GetInteger("upload_rate_kbits", &upload_rate_read) &&
         upload_rate_read > 0) {
       upload_rate = upload_rate_read;
     }
 
     if (throttling_policy->GetInteger("download_rate_kbits",
                                       &download_rate_read) &&
         download_rate_read > 0) {
       download_rate = download_rate_read;
     }
   }
   NetworkHandler::Get()->network_state_handler()->SetNetworkThrottlingStatus(
       enabled, upload_rate, download_rate);
 }
 
 }  // namespace chromeos