Collapse the API surface on WebInputEvent via accessor functions.

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1893 matching lines @@
 
   IntPoint hitPoint = IntPoint(30, 30);  // button size is 100x100
 
   WebLocalFrameImpl* frame = webViewHelper.webView()->mainFrameImpl();
   Document* document = frame->frame()->document();
   Element* element = document->getElementById("tap_button");
 
   ASSERT_NE(nullptr, element);
   EXPECT_EQ(String("oldValue"), element->innerText());
 
-  WebGestureEvent gestureEvent;
+  WebGestureEvent gestureEvent(WebInputEvent::GestureTap,
+                               WebInputEvent::NoModifiers,
+                               WebInputEvent::TimeStampForTesting);
   gestureEvent.setFrameScale(1);
-  gestureEvent.type = WebInputEvent::GestureTap;
   gestureEvent.x = gestureEvent.globalX = hitPoint.x();
   gestureEvent.y = gestureEvent.globalY = hitPoint.y();
   gestureEvent.sourceDevice = WebGestureDeviceTouchscreen;
   webViewHelper.webView()
       ->mainFrameImpl()
       ->frame()
       ->eventHandler()
       .handleGestureEvent(gestureEvent);
   // when pressed, the button changes its own text to "updatedValue"
   EXPECT_EQ(String("updatedValue"), element->innerText());
@@ skipping 9308 matching lines @@
 
   EXPECT_TRUE(mainFrameClient.childClient().didCallFrameDetached());
   EXPECT_TRUE(mainFrameClient.childClient().didCallDidStopLoading());
   EXPECT_TRUE(mainFrameClient.childClient().didCallDidFinishDocumentLoad());
   EXPECT_TRUE(mainFrameClient.childClient().didCallDidHandleOnloadEvents());
 
   webViewHelper.reset();
 }
 
 }  // namespace blink