Plumb firing passive event listeners.

content/renderer/input/input_handler_manager_client.h

Index: content/renderer/input/input_handler_manager_client.h
diff --git a/content/renderer/input/input_handler_manager_client.h b/content/renderer/input/input_handler_manager_client.h
index cf4fe00f35a430dc16b952276ac0687cfcdafde1..c794bd2353a32989095bb5f177e26e49951c0b3f 100644
--- a/content/renderer/input/input_handler_manager_client.h
+++ b/content/renderer/input/input_handler_manager_client.h
@@ -10,6 +10,7 @@
 #include "base/macros.h"
 #include "content/common/content_export.h"
 #include "content/common/input/input_event_ack_state.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/gfx/geometry/vector2d_f.h"
 
 namespace ui {
@@ -20,10 +21,6 @@ namespace cc {
 class InputHandler;
 }
 
-namespace blink {
-class WebInputEvent;
-}
-
 namespace ui {
 class SynchronousInputHandlerProxy;
 }
@@ -54,6 +51,9 @@ class CONTENT_EXPORT InputHandlerManagerClient {
   virtual void DidOverscroll(int routing_id,
                              const DidOverscrollParams& params) = 0;
   virtual void DidStopFlinging(int routing_id) = 0;
+  virtual void NonBlockingInputEventHandled(
+      int routing_id,
+      blink::WebInputEvent::Type type) = 0;
 
  protected:
   InputHandlerManagerClient() {}