Fixes for re-enabling more MSVC level 4 warnings: content/browser/ edition

content/browser/geolocation/network_location_request.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 "content/browser/geolocation/network_location_request.h"
 
 #include <set>
 #include <string>
 
 #include "base/json/json_reader.h"
@@ skipping 391 matching lines @@
       // If the network provider was unable to provide a position fix, it should
       // return a HTTP 200, with "location" : null. Otherwise it's an error.
       return false;
     }
     return true;  // Successfully parsed response containing no fix.
   }
   const base::DictionaryValue* location_object =
       static_cast<const base::DictionaryValue*>(location_value);
 
   // latitude and longitude fields are always required.
-  double latitude, longitude;
+  double latitude = 0;
+  double longitude = 0;
   if (!GetAsDouble(*location_object, kLatitudeString, &latitude) ||
       !GetAsDouble(*location_object, kLongitudeString, &longitude)) {
     VLOG(1) << "ParseServerResponse() : location lacks lat and/or long.";
     return false;
   }
   // All error paths covered: now start actually modifying postion.
   position->latitude = latitude;
   position->longitude = longitude;
   position->timestamp = timestamp;
 
   // Other fields are optional.
   GetAsDouble(*response_object, kAccuracyString, &position->accuracy);
 
   return true;
 }
 
 }  // namespace
 
 }  // namespace content