Use a direct include of strings headers in content/browser/, part 1.

content/browser/geolocation/network_location_provider.h

 // 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.
 
 #ifndef CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
 #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
 
 #include <list>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/threading/thread.h"
 #include "content/browser/geolocation/device_data_provider.h"
 #include "content/browser/geolocation/location_provider.h"
 #include "content/browser/geolocation/network_location_request.h"
 #include "content/common/content_export.h"
 #include "content/public/common/geoposition.h"
 
 namespace content {
 class AccessTokenStore;
 
@@ skipping 101 matching lines @@
   base::WeakPtrFactory<NetworkLocationProvider> weak_factory_;
   // The cache of positions.
   scoped_ptr<PositionCache> position_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkLocationProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_