Change the non-blocking event queue to the main thread event queue.

content/browser/renderer_host/input/input_router_impl.h

Index: content/browser/renderer_host/input/input_router_impl.h
diff --git a/content/browser/renderer_host/input/input_router_impl.h b/content/browser/renderer_host/input/input_router_impl.h
index 02f5d399efbc6b46c05d926fd641f842a54e58d5..9315f6fa379dec63888c64718f12854f5c018b83 100644
--- a/content/browser/renderer_host/input/input_router_impl.h
+++ b/content/browser/renderer_host/input/input_router_impl.h
@@ -18,6 +18,7 @@
 #include "content/browser/renderer_host/input/touch_action_filter.h"
 #include "content/browser/renderer_host/input/touch_event_queue.h"
 #include "content/browser/renderer_host/input/touchpad_tap_suppression_controller.h"
+#include "content/common/input/input_event_dispatch_type.h"
 #include "content/common/input/input_event_stream_validator.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 
@@ -127,7 +128,8 @@ class CONTENT_EXPORT InputRouterImpl
   // Returns true if |input_event| was successfully sent to the renderer
   // as an async IPC Message.
   bool OfferToRenderer(const blink::WebInputEvent& input_event,
-                       const ui::LatencyInfo& latency_info);
+                       const ui::LatencyInfo& latency_info,
+                       InputEventDispatchType dispatch_type);
 
   // IPC message handlers
   void OnInputEventAck(const InputEventAck& ack);