Hide the mouse cursor if it is empty.

remoting/client/plugin/pepper_input_handler.cc

Index: remoting/client/plugin/pepper_input_handler.cc
diff --git a/remoting/client/plugin/pepper_input_handler.cc b/remoting/client/plugin/pepper_input_handler.cc
index f12b1fd1dfb0eb93b7c1247b22e6daa3ca473926..6c574c2d76d1dd8a14ed7ae7deb35e61462bb3e1 100644
--- a/remoting/client/plugin/pepper_input_handler.cc
+++ b/remoting/client/plugin/pepper_input_handler.cc
@@ -280,10 +280,7 @@ void PepperInputHandler::UpdateMouseCursor() {
                                *cursor_image_,
                                cursor_hotspot_);
   } else {
-    // If there is no cursor shape stored, either because the host never
-    // supplied one, or we were previously in mouse-lock mode, then use
-    // a standard arrow pointer.
-    pp::MouseCursor::SetCursor(instance_, PP_MOUSECURSOR_TYPE_POINTER);
+    pp::MouseCursor::SetCursor(instance_, PP_MOUSECURSOR_TYPE_NONE);
   }
 }