[VSync Queue] Plug touch ack to gesture events and flush vsync queue if necessary

content/browser/renderer_host/input/touch_emulator.cc

Index: content/browser/renderer_host/input/touch_emulator.cc
diff --git a/content/browser/renderer_host/input/touch_emulator.cc b/content/browser/renderer_host/input/touch_emulator.cc
index c7ec22f1a9203cfb7620ee163cd8c091bcdda889..6c25ee02371bdcccbe63e156972fa48d0af8071b 100644
--- a/content/browser/renderer_host/input/touch_emulator.cc
+++ b/content/browser/renderer_host/input/touch_emulator.cc
@@ -254,11 +254,11 @@ void TouchEmulator::HandleEmulatedTouchEvent(blink::WebTouchEvent event) {
   if (!result.succeeded)
     return;
 
-  const bool event_consumed = true;
+  const ui::EventResult event_result = ui::ER_CONSUMED;
   // Block emulated event when emulated native stream is active.
   if (native_stream_active_sequence_count_) {
     gesture_provider_->OnTouchEventAck(event.unique_touch_event_id,
-                                       event_consumed);
+                                       event_result);
     return;
   }
 
@@ -266,7 +266,7 @@ void TouchEmulator::HandleEmulatedTouchEvent(blink::WebTouchEvent event) {
   // Do not allow middle-sequence event to pass through, if start was blocked.
   if (!emulated_stream_active_sequence_count_ && !is_sequence_start) {
     gesture_provider_->OnTouchEventAck(event.unique_touch_event_id,
-                                       event_consumed);
+                                       event_result);
     return;
   }
 
@@ -284,10 +284,12 @@ bool TouchEmulator::HandleTouchEventAck(
     if (is_sequence_end)
       emulated_stream_active_sequence_count_--;
 
-    const bool event_consumed = ack_result == INPUT_EVENT_ACK_STATE_CONSUMED;
+    const ui::EventResult event_result =
+        ack_result == INPUT_EVENT_ACK_STATE_CONSUMED ? ui::ER_CONSUMED
+                                                     : ui::ER_UNHANDLED;
     if (gesture_provider_)
       gesture_provider_->OnTouchEventAck(event.unique_touch_event_id,
-                                         event_consumed);
+                                         event_result);
     return true;
   }