Making EventSender talk to the right WebWidget (for OOPIF support).

ui/events/blink/blink_event_util.h

Index: ui/events/blink/blink_event_util.h
diff --git a/ui/events/blink/blink_event_util.h b/ui/events/blink/blink_event_util.h
index aa12f9d1dd9132985e7ecf6aeab5964efb5205ae..247ce4f2e6675dd6d3a5dd0ce292246fc2c8eef2 100644
--- a/ui/events/blink/blink_event_util.h
+++ b/ui/events/blink/blink_event_util.h
@@ -22,6 +22,7 @@ class WebTouchEvent;
 
 namespace gfx {
 class PointF;
+class Vector2d;
 }
 
 namespace ui {
@@ -51,6 +52,16 @@ std::unique_ptr<blink::WebInputEvent> ScaleWebInputEvent(
     const blink::WebInputEvent& event,
     float scale);
 
+// Transforms coordinates and other properties of |event|, by
+// 1) translating / shifting by |delta| and
+// 2) scaling by |scale|.
+// If |event| does not need to change, returns nullptr.
+// Otherwise, returns the transformed version of |event|.
+std::unique_ptr<blink::WebInputEvent> TranslateAndScaleWebInputEvent(
+    const blink::WebInputEvent& event,
+    const gfx::Vector2d& delta,
+    float scale);
+
 blink::WebPointerProperties::PointerType ToWebPointerType(
     MotionEvent::ToolType tool_type);