client-side wheel mouse support

remoting/client/plugin/chromoting_instance.cc

Index: remoting/client/plugin/chromoting_instance.cc
diff --git a/remoting/client/plugin/chromoting_instance.cc b/remoting/client/plugin/chromoting_instance.cc
index 6a32a0bcf6392de92a7d6441f4fc029e5151889d..7eb70a90d674b892809b155d6c85decced2e0075 100644
--- a/remoting/client/plugin/chromoting_instance.cc
+++ b/remoting/client/plugin/chromoting_instance.cc
@@ -258,6 +258,11 @@ bool ChromotingInstance::HandleInputEvent(const pp::InputEvent& event) {
       return true;
     }
 
+    case PP_INPUTEVENT_TYPE_WHEEL: {
+      pih->HandleMouseWheelEvent(pp::WheelInputEvent(event));
+      return true;
+    }
+
     case PP_INPUTEVENT_TYPE_CONTEXTMENU: {
       // We need to return true here or else we'll get a local (plugin) context
       // menu instead of the mouseup event for the right click.