[Android] Disable the refresh effect for fullscreen HTML5 scenarios

content/browser/android/overscroll_controller_android.h

Index: content/browser/android/overscroll_controller_android.h
diff --git a/content/browser/android/overscroll_controller_android.h b/content/browser/android/overscroll_controller_android.h
index 5f76dab4352787e50898efb3158c9678e7523a2a..128b803eca23cae9b4dcc7397dab7a73c7c9cc84 100644
--- a/content/browser/android/overscroll_controller_android.h
+++ b/content/browser/android/overscroll_controller_android.h
@@ -79,7 +79,8 @@ class OverscrollControllerAndroid : public OverscrollGlowClient,
   // TODO(jdduke): Factor out a common API from the two overscroll effects.
   scoped_ptr<OverscrollGlow> glow_effect_;
   scoped_ptr<OverscrollRefresh> refresh_effect_;
-  bool has_initialized_refresh_effect_;
+
+  // For fullscreen HTML5 scenarios, the refresh effect will be disabled.
   bool is_fullscreen_;
 
   DISALLOW_COPY_AND_ASSIGN(OverscrollControllerAndroid);