Fix coding style violation in UserGestureToken's ctor

Source/platform/UserGestureIndicator.cpp

Index: Source/platform/UserGestureIndicator.cpp
diff --git a/Source/platform/UserGestureIndicator.cpp b/Source/platform/UserGestureIndicator.cpp
index b2d90814dc678a69bf2b1fc6453be130c9689e92..508483555e2c4b85be0c1b010a1267b89ac150b4 100644
--- a/Source/platform/UserGestureIndicator.cpp
+++ b/Source/platform/UserGestureIndicator.cpp
@@ -90,10 +90,10 @@ public:
 
 private:
     GestureToken()
-        : m_consumableGestures(0),
-        m_timestamp(0),
-        m_outOfProcess(false),
-        m_javascriptPrompt(false)
+        : m_consumableGestures(0)
+        , m_timestamp(0)
+        , m_outOfProcess(false)
+        , m_javascriptPrompt(false)
     {
     }