Make SyntheticPointerAction to flush the pointer action sequence

content/browser/renderer_host/input/synthetic_gesture_controller.cc

Index: content/browser/renderer_host/input/synthetic_gesture_controller.cc
diff --git a/content/browser/renderer_host/input/synthetic_gesture_controller.cc b/content/browser/renderer_host/input/synthetic_gesture_controller.cc
index 9e5bc84403eb18e01f09e43b26b9db51fbd20211..f21427a0d6551dbe4a4a223db67d31819a7786fa 100644
--- a/content/browser/renderer_host/input/synthetic_gesture_controller.cc
+++ b/content/browser/renderer_host/input/synthetic_gesture_controller.cc
@@ -16,7 +16,10 @@ namespace content {
 
 SyntheticGestureController::SyntheticGestureController(
     std::unique_ptr<SyntheticGestureTarget> gesture_target)
-    : gesture_target_(std::move(gesture_target)) {}
+    : gesture_target_(std::move(gesture_target)) {
+  pointer_action_controller_.SetDefaultGestureSourceType(
+      gesture_target_->GetDefaultSyntheticGestureSourceType());
+}
 
 SyntheticGestureController::~SyntheticGestureController() {}
 
@@ -29,11 +32,24 @@ void SyntheticGestureController::QueueSyntheticGesture(
 
   pending_gesture_queue_.Push(std::move(synthetic_gesture),
                               completion_callback);
-
   if (was_empty)
     StartGesture(*pending_gesture_queue_.FrontGesture());
 }
 
+void SyntheticGestureController::QueueSyntheticPointerAction(
+    const SyntheticGestureParams& gesture_params,
+    const OnGestureCompleteCallback& completion_callback) {
+  std::unique_ptr<SyntheticGesture> synthetic_gesture;
+  if (gesture_params.GetGestureType() ==
+      SyntheticGestureParams::POINTER_ACTION_LIST) {
+    synthetic_gesture = pointer_action_controller_.CreateSyntheticPointerAction(
+        *SyntheticPointerActionListParams::Cast(&gesture_params));
+  } else
+    synthetic_gesture = SyntheticGesture::Create(gesture_params);

[tdresser, 2016/09/30 13:24:30]

I'm not sure this logic (converting to a SyntheticGesture) belongs here. Perhaps
in RWHI?

[tdresser, 2016/09/30 13:24:30]

Use {} for all clauses.

[lanwei, 2016/10/21 21:53:07]

Done.

[lanwei, 2016/10/21 21:53:07]

Done.

+
+  QueueSyntheticGesture(std::move(synthetic_gesture), completion_callback);
+}
+
 void SyntheticGestureController::Flush(base::TimeTicks timestamp) {
   TRACE_EVENT0("input", "SyntheticGestureController::Flush");
   if (pending_gesture_queue_.IsEmpty())