re-land the "SourceEventType added to LatencyInfo."

content/browser/frame_host/render_widget_host_view_guest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_widget_host_view_guest.h"
 
 #include <utility>
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 551 matching lines @@
     gfx::Vector2d offset =
         GetViewBounds().origin() -
         GetOwnerRenderWidgetHostView()->GetBoundsInRootWindow().origin();
     blink::WebGestureEvent gesture_tap_event;
     gesture_tap_event.sourceDevice = blink::WebGestureDeviceTouchscreen;
     gesture_tap_event.type = blink::WebGestureEvent::GestureTapDown;
     gesture_tap_event.x = position.x + offset.x();
     gesture_tap_event.y = position.y + offset.y();
     gesture_tap_event.globalX = screenPosition.x;
     gesture_tap_event.globalY = screenPosition.y;
-    GetOwnerRenderWidgetHostView()->ProcessGestureEvent(gesture_tap_event,
-                                                        ui::LatencyInfo());
+    GetOwnerRenderWidgetHostView()->ProcessGestureEvent(
+        gesture_tap_event, ui::LatencyInfo(ui::SourceEventType::TOUCH));
     gesture_tap_event.type = blink::WebGestureEvent::GestureTapCancel;
-    GetOwnerRenderWidgetHostView()->ProcessGestureEvent(gesture_tap_event,
-                                                        ui::LatencyInfo());
+    GetOwnerRenderWidgetHostView()->ProcessGestureEvent(
+        gesture_tap_event, ui::LatencyInfo(ui::SourceEventType::TOUCH));
   }
 }
 
 void RenderWidgetHostViewGuest::WheelEventAck(
     const blink::WebMouseWheelEvent& event,
     InputEventAckState ack_result) {
   if (ack_result == INPUT_EVENT_ACK_STATE_NOT_CONSUMED ||
       ack_result == INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS) {
     guest_->ResendEventToEmbedder(event);
   }
@@ skipping 25 matching lines @@
   if (IsUseZoomForDSFEnabled() &&
       event->type == blink::WebInputEvent::MouseWheel) {
     blink::WebMouseWheelEvent rescaled_event =
         *static_cast<const blink::WebMouseWheelEvent*>(event);
     rescaled_event.x /= current_device_scale_factor();
     rescaled_event.y /= current_device_scale_factor();
     rescaled_event.deltaX /= current_device_scale_factor();
     rescaled_event.deltaY /= current_device_scale_factor();
     rescaled_event.wheelTicksX /= current_device_scale_factor();
     rescaled_event.wheelTicksY /= current_device_scale_factor();
-    host_->ForwardWheelEvent(rescaled_event);
+    ui::LatencyInfo latency_info(ui::SourceEventType::WHEEL);
+    host_->ForwardWheelEventWithLatencyInfo(rescaled_event, latency_info);
     return;
   }
 
   ScopedInputScaleDisabler disable(host_, current_device_scale_factor());
   if (blink::WebInputEvent::isMouseEventType(event->type)) {
     // The mouse events for BrowserPlugin are modified by all
     // the CSS transforms applied on the <object> and embedder. As a result of
     // this, the coordinates passed on to the guest renderer are potentially
     // incorrect to determine the position of the context menu(they are not the
     // actual X, Y of the window). As a hack, we report the last location of a
     // right mouse up to the BrowserPluginGuest to inform it of the next
     // potential location for context menu (BUG=470087).
     // TODO(ekaramad): Find a better and more fundamental solution. Could the
     // ContextMenuParams be based on global X, Y?
     const blink::WebMouseEvent& mouse_event =
         static_cast<const blink::WebMouseEvent&>(*event);
     // A MouseDown on the ButtonRight could suggest a ContextMenu.
     if (guest_ && mouse_event.type == blink::WebInputEvent::MouseDown &&
         mouse_event.button == blink::WebPointerProperties::Button::Right)
       guest_->SetContextMenuPosition(
           gfx::Point(mouse_event.globalX - GetViewBounds().x(),
                      mouse_event.globalY - GetViewBounds().y()));
     host_->ForwardMouseEvent(mouse_event);
     return;
   }
 
   if (event->type == blink::WebInputEvent::MouseWheel) {
-    host_->ForwardWheelEvent(
-        *static_cast<const blink::WebMouseWheelEvent*>(event));
+    ui::LatencyInfo latency_info(ui::SourceEventType::WHEEL);
+    host_->ForwardWheelEventWithLatencyInfo(
+        *static_cast<const blink::WebMouseWheelEvent*>(event), latency_info);
     return;
   }
 
   if (blink::WebInputEvent::isKeyboardEventType(event->type)) {
     if (!embedder->GetLastKeyboardEvent())
       return;
     NativeWebKeyboardEvent keyboard_event(*embedder->GetLastKeyboardEvent());
     host_->ForwardKeyboardEvent(keyboard_event);
     return;
   }
 
   if (blink::WebInputEvent::isTouchEventType(event->type)) {
     if (event->type == blink::WebInputEvent::TouchStart &&
         !embedder->GetView()->HasFocus()) {
       embedder->GetView()->Focus();
     }
-
+    ui::LatencyInfo latency_info(ui::SourceEventType::TOUCH);
     host_->ForwardTouchEventWithLatencyInfo(
-        *static_cast<const blink::WebTouchEvent*>(event),
-        ui::LatencyInfo());
+        *static_cast<const blink::WebTouchEvent*>(event), latency_info);
     return;
   }
 
   if (blink::WebInputEvent::isGestureEventType(event->type)) {
     const blink::WebGestureEvent& gesture_event =
         *static_cast<const blink::WebGestureEvent*>(event);
 
     // We don't forward inertial GestureScrollUpdates to the guest anymore
     // since it now receives GestureFlingStart and will have its own fling
     // curve generating GestureScrollUpdate events for it.
     // TODO(wjmaclean): Should we try to avoid creating a fling curve in the
     // embedder renderer in this case? BrowserPlugin can return 'true' for
     // handleInputEvent() on a GestureFlingStart, and we could use this as
     // a signal to let the guest handle the fling, though we'd need to be
     // sure other plugins would behave appropriately (i.e. return 'false').
     if (gesture_event.type == blink::WebInputEvent::GestureScrollUpdate &&
         gesture_event.data.scrollUpdate.inertialPhase ==
             blink::WebGestureEvent::MomentumPhase) {
       return;
     }
     host_->ForwardGestureEvent(gesture_event);
     return;
   }
 }
 
 }  // namespace content