Types for m_maximumAge and m_timeout in PositionOptions class should be changed

Types of m_maximumAge and m_imeout are "unsigned long"
but they are "int". Therefore their types should change to
"unsigned" for align with others.

BUG=368184

Review URL: https://codereview.chromium.org/336213002

git-svn-id: svn://svn.chromium.org/blink/trunk@176266 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/modules/geolocation/PositionOptions.h

@@ -66,8 +66,8 @@ private:
     }
 
     bool m_highAccuracy;
-    int m_maximumAge;
-    int m_timeout;
+    unsigned m_maximumAge;
+    unsigned m_timeout;
 };
 
 } // namespace WebCore