Collapse the API surface on WebInputEvent via accessor functions.

ui/events/blink/input_handler_proxy_unittest.cc

Index: ui/events/blink/input_handler_proxy_unittest.cc
diff --git a/ui/events/blink/input_handler_proxy_unittest.cc b/ui/events/blink/input_handler_proxy_unittest.cc
index 06da7b923a510f1c76e8ba26bffe4396accea4f2..f17d8099b4aec295c814dac322f90db2cf2c4418 100644
--- a/ui/events/blink/input_handler_proxy_unittest.cc
+++ b/ui/events/blink/input_handler_proxy_unittest.cc
@@ -73,12 +73,12 @@ double InSecondsF(const base::TimeTicks& time) {
 }
 
 bool WheelEventsMatch(const WebInputEvent& lhs, const WebInputEvent& rhs) {
-  if (lhs.size == rhs.size && lhs.type == rhs.type &&
-      lhs.type == WebInputEvent::MouseWheel) {
+  if (lhs.size() == rhs.size() && lhs.type() == rhs.type() &&
+      lhs.type() == WebInputEvent::MouseWheel) {
     WebMouseWheelEvent rhs_timestamped =
         static_cast<const WebMouseWheelEvent&>(rhs);
-    rhs_timestamped.timeStampSeconds = lhs.timeStampSeconds;
-    return memcmp(&rhs_timestamped, &lhs, rhs.size) == 0;
+    rhs_timestamped.setTimeStampSeconds(lhs.timeStampSeconds());
+    return memcmp(&rhs_timestamped, &lhs, rhs.size()) == 0;
   }
   return false;
 }