WIP Add getCoalescedEvents API using vector of WebInputEvents

content/renderer/input/input_handler_manager.cc

Index: content/renderer/input/input_handler_manager.cc
diff --git a/content/renderer/input/input_handler_manager.cc b/content/renderer/input/input_handler_manager.cc
index e14d200b4499cd37e30f4bdb1f734667313d67ef..dbe369263df5cb319cc2876183616bd0ab46ff3c 100644
--- a/content/renderer/input/input_handler_manager.cc
+++ b/content/renderer/input/input_handler_manager.cc
@@ -201,12 +201,12 @@ void InputHandlerManager::ProcessRafAlignedInputOnMainThread(int routing_id) {
 
 void InputHandlerManager::HandleInputEvent(
     int routing_id,
-    ui::ScopedWebInputEvent input_event,
+    blink::ScopedCoalescedWebInputEvent input_event,
     const ui::LatencyInfo& latency_info,
     const InputEventAckStateCallback& callback) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   TRACE_EVENT1("input,benchmark,rail", "InputHandlerManager::HandleInputEvent",
-               "type", WebInputEvent::GetName(input_event->type));
+               "type", WebInputEvent::GetName(input_event->event().type));
 
   auto it = input_handlers_.find(routing_id);
   if (it == input_handlers_.end()) {
@@ -230,7 +230,7 @@ void InputHandlerManager::HandleInputEvent(
 void InputHandlerManager::DidHandleInputEventAndOverscroll(
     const InputEventAckStateCallback& callback,
     InputHandlerProxy::EventDisposition event_disposition,
-    ui::ScopedWebInputEvent input_event,
+    blink::ScopedCoalescedWebInputEvent input_event,
     const ui::LatencyInfo& latency_info,
     std::unique_ptr<ui::DidOverscrollParams> overscroll_params) {
   InputEventAckState input_event_ack_state =
@@ -276,7 +276,7 @@ void InputHandlerManager::NeedsMainFrame(int routing_id) {
 
 void InputHandlerManager::DispatchNonBlockingEventToMainThread(
     int routing_id,
-    ui::ScopedWebInputEvent event,
+    blink::ScopedCoalescedWebInputEvent event,
     const ui::LatencyInfo& latency_info) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   client_->DispatchNonBlockingEventToMainThread(routing_id, std::move(event),