Use the exact-width integer types defined in <stdint.h> rather than

net/base/network_interfaces.h

Index: net/base/network_interfaces.h
diff --git a/net/base/network_interfaces.h b/net/base/network_interfaces.h
index 4ca249e5c3fa26f934a51dfc6aafa414de19bb61..b667b415944ca672c7638ea7cec54d75e3fecd58 100644
--- a/net/base/network_interfaces.h
+++ b/net/base/network_interfaces.h
@@ -46,19 +46,19 @@ struct NET_EXPORT NetworkInterface {
   NetworkInterface();
   NetworkInterface(const std::string& name,
                    const std::string& friendly_name,
-                   uint32 interface_index,
+                   uint32_t interface_index,
                    NetworkChangeNotifier::ConnectionType type,
                    const IPAddressNumber& address,
-                   uint32 prefix_length,
+                   uint32_t prefix_length,
                    int ip_address_attributes);
   ~NetworkInterface();
 
   std::string name;
   std::string friendly_name;  // Same as |name| on non-Windows.
-  uint32 interface_index;  // Always 0 on Android.
+  uint32_t interface_index;  // Always 0 on Android.
   NetworkChangeNotifier::ConnectionType type;
   IPAddressNumber address;
-  uint32 prefix_length;
+  uint32_t prefix_length;
   int ip_address_attributes;  // Combination of |IPAddressAttributes|.
 };