Change value type of timeout and maximumAge in PositionOptions

Source/modules/geolocation/PositionOptions.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 namespace WebCore {
 
 class PositionOptions : public RefCountedWillBeGarbageCollected<PositionOptions> {
 public:
     static PassRefPtrWillBeRawPtr<PositionOptions> create() { return adoptRefWillBeNoop(new PositionOptions()); }
     void trace(Visitor*) { }
 
     bool enableHighAccuracy() const { return m_highAccuracy; }
     void setEnableHighAccuracy(bool enable) { m_highAccuracy = enable; }
     bool hasTimeout() const { return m_hasTimeout; }
-    int timeout() const
+    unsigned timeout() const
     {
         ASSERT(hasTimeout());
         return m_timeout;
     }
-    void setTimeout(int timeout)
+    void setTimeout(unsigned timeout)
     {
-        ASSERT(timeout >= 0);
         m_hasTimeout = true;
         m_timeout = timeout;
     }
     bool hasMaximumAge() const { return m_hasMaximumAge; }
-    int maximumAge() const
+    unsigned maximumAge() const
     {
         ASSERT(hasMaximumAge());
         return m_maximumAge;
     }
     void clearMaximumAge() { m_hasMaximumAge = false; }
-    void setMaximumAge(int age)
+    void setMaximumAge(unsigned age)
     {
-        ASSERT(age >= 0);
         m_hasMaximumAge = true;
         m_maximumAge = age;
     }
 
 private:
     PositionOptions()
         : m_highAccuracy(false)
         , m_hasTimeout(false)
     {
         setMaximumAge(0);
     }
 
     bool m_highAccuracy;
     bool m_hasTimeout;
-    int m_timeout;
+    unsigned m_timeout;
     bool m_hasMaximumAge;
-    int m_maximumAge;
+    unsigned m_maximumAge;
 };
 
 } // namespace WebCore
 
 #endif // PositionOptions_h