Enable keyboard filters in PNaCl client

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 60a2746b8cd0fd2d1db7bb4b2d8623eba1e88f41..b9ec4e8598b27ad3963a8a27b28b80358381b8de 100644
--- a/remoting/client/plugin/pepper_input_handler.cc
+++ b/remoting/client/plugin/pepper_input_handler.cc
@@ -17,11 +17,10 @@
 namespace remoting {
 
 PepperInputHandler::PepperInputHandler(
-    pp::Instance* instance,
-    protocol::InputStub* input_stub)
+    pp::Instance* instance)
     : pp::MouseLock(instance),
       instance_(instance),
-      input_stub_(input_stub),
+      input_stub_(NULL),
       callback_factory_(this),
       has_focus_(false),
       mouse_lock_state_(MouseLockDisallowed),
@@ -31,8 +30,7 @@ PepperInputHandler::PepperInputHandler(
       wheel_ticks_y_(0) {
 }
 
-PepperInputHandler::~PepperInputHandler() {
-}
+PepperInputHandler::~PepperInputHandler() {}
 
 // Helper function to get the USB key code using the Dev InputEvent interface.
 uint32_t GetUsbKeyCode(pp::KeyboardInputEvent pp_key_event) {
@@ -69,7 +67,8 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
       key_event.set_pressed(event.GetType() == PP_INPUTEVENT_TYPE_KEYDOWN);
       key_event.set_lock_states(lock_states);
 
-      input_stub_->InjectKeyEvent(key_event);
+      if (input_stub_)
+        input_stub_->InjectKeyEvent(key_event);
       return true;
     }
 
@@ -106,7 +105,8 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
           mouse_event.set_delta_y(delta.y());
         }
 
-        input_stub_->InjectMouseEvent(mouse_event);
+        if (input_stub_)
+          input_stub_->InjectMouseEvent(mouse_event);
       }
       return true;
     }
@@ -129,7 +129,8 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
         mouse_event.set_delta_y(delta.y());
       }
 
-      input_stub_->InjectMouseEvent(mouse_event);
+      if (input_stub_)
+        input_stub_->InjectMouseEvent(mouse_event);
       return true;
     }
 
@@ -175,7 +176,8 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
         mouse_event.set_wheel_ticks_x(ticks_x);
         mouse_event.set_wheel_ticks_y(ticks_y);
 
-        input_stub_->InjectMouseEvent(mouse_event);
+        if (input_stub_)
+          input_stub_->InjectMouseEvent(mouse_event);
       }
       return true;
     }