Plumb firing passive event listeners.

content/renderer/input/input_event_filter.h

Index: content/renderer/input/input_event_filter.h
diff --git a/content/renderer/input/input_event_filter.h b/content/renderer/input/input_event_filter.h
index e2d18f398df33958bb04e6d79a8895db0dc4e92a..db690f76a22da17f195d8bd111b52872cd5672fe 100644
--- a/content/renderer/input/input_event_filter.h
+++ b/content/renderer/input/input_event_filter.h
@@ -13,6 +13,7 @@
 #include "content/common/content_export.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/renderer/input/input_handler_manager_client.h"
+#include "content/renderer/input/passive_event_queue.h"
 #include "ipc/message_filter.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
@@ -40,7 +41,8 @@ class Sender;
 namespace content {
 
 class CONTENT_EXPORT InputEventFilter : public InputHandlerManagerClient,
-                                        public IPC::MessageFilter {
+                                        public IPC::MessageFilter,
+                                        public PassiveEventQueueClient {
  public:
   InputEventFilter(
       const base::Callback<void(const IPC::Message&)>& main_listener,
@@ -66,6 +68,8 @@ class CONTENT_EXPORT InputEventFilter : public InputHandlerManagerClient,
   void DidOverscroll(int routing_id,
                      const DidOverscrollParams& params) override;
   void DidStopFlinging(int routing_id) override;
+  void PassiveInputEventHandled(int routing_id,
+                                blink::WebInputEvent::Type type) override;
 
   // IPC::MessageFilter methods:
   void OnFilterAdded(IPC::Sender* sender) override;
@@ -73,6 +77,11 @@ class CONTENT_EXPORT InputEventFilter : public InputHandlerManagerClient,
   void OnChannelClosing() override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
+  // PassiveEventQueueClient methods:
+  void SendPassiveEvent(int routing_id,
+                        const blink::WebInputEvent* event,
+                        const ui::LatencyInfo& latency) override;
+
  private:
   ~InputEventFilter() override;
 
@@ -97,6 +106,9 @@ class CONTENT_EXPORT InputEventFilter : public InputHandlerManagerClient,
   // Indicates the routing_ids for which input events should be filtered.
   std::set<int> routes_;
 
+  typedef std::map<int, PassiveEventQueue*> RouteQueueMap;
+  RouteQueueMap route_queues_;
+
   // Used to intercept overscroll notifications while an event is being
   // dispatched.  If the event causes overscroll, the overscroll metadata can be
   // bundled in the event ack, saving an IPC.  Note that we must continue