Cleanup namespace usage in Source/web/Web[I-Z]*.cpp

Source/web/WebScopedUserGesture.cpp

Index: Source/web/WebScopedUserGesture.cpp
diff --git a/Source/web/WebScopedUserGesture.cpp b/Source/web/WebScopedUserGesture.cpp
index 9b82c11a24d7fcf84f1a23032ecd879c45f5fd8f..42ed07056eaf9f6136cd002e81a298f2a00df8c3 100644
--- a/Source/web/WebScopedUserGesture.cpp
+++ b/Source/web/WebScopedUserGesture.cpp
@@ -38,13 +38,13 @@ namespace blink {
 
 void WebScopedUserGesture::initialize()
 {
-    m_indicator.reset(new blink::UserGestureIndicator(blink::DefinitelyProcessingNewUserGesture));
+    m_indicator.reset(new UserGestureIndicator(DefinitelyProcessingNewUserGesture));
 }
 
 void WebScopedUserGesture::initializeWithToken(const WebUserGestureToken& token)
 {
     if (!token.isNull())
-        m_indicator.reset(new blink::UserGestureIndicator(token));
+        m_indicator.reset(new UserGestureIndicator(token));
 }
 
 void WebScopedUserGesture::reset()