client-side wheel mouse support

remoting/client/plugin/pepper_input_handler.h

Index: remoting/client/plugin/pepper_input_handler.h
diff --git a/remoting/client/plugin/pepper_input_handler.h b/remoting/client/plugin/pepper_input_handler.h
index 7c1c0a908fd7035f1374f0ca0e1d3282d14ad39c..2f1d12ec9c295479bb1eb3caab6d3b7463bcf312 100644
--- a/remoting/client/plugin/pepper_input_handler.h
+++ b/remoting/client/plugin/pepper_input_handler.h
@@ -13,11 +13,6 @@ class MouseInputEvent;
 class WheelInputEvent;
 }
 
-namespace pp {
-class KeyboardInputEvent;
-class MouseInputEvent;
-}  // namespace pp
-
 namespace remoting {
 
 class PepperViewProxy;
@@ -37,6 +32,7 @@ class PepperInputHandler : public InputHandler {
   void HandleMouseMoveEvent(const pp::MouseInputEvent& event);
   void HandleMouseButtonEvent(bool button_down,
                               const pp::MouseInputEvent& event);
+  void HandleMouseWheelEvent(const pp::WheelInputEvent& event);
 
  private:
   PepperViewProxy* pepper_view_;