Enable keyboard filters in PNaCl client

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 c72243e5a0e8f924413a279533c2f56be4ff53a3..d975670b57b223403ff0c8b7cd1e413c29bafddf 100644
--- a/remoting/client/plugin/pepper_input_handler.h
+++ b/remoting/client/plugin/pepper_input_handler.h
@@ -27,9 +27,13 @@ class InputStub;
 class PepperInputHandler : public pp::MouseLock {
  public:
   // |instance| must outlive |this|.
-  PepperInputHandler(pp::Instance* instance, protocol::InputStub* input_stub);
+  explicit PepperInputHandler(pp::Instance* instance);
   virtual ~PepperInputHandler();
 
+  void set_input_stub(protocol::InputStub* input_stub) {
+    input_stub_ = input_stub;
+  }
+
   bool HandleInputEvent(const pp::InputEvent& event);
 
   // Enables locking the mouse when the host sets a completely transparent mouse