Add constructors to WebInputEvents and setters so we can work at cleaning up these public structs.

third_party/WebKit/public/platform/WebMouseWheelEvent.h

 // Copyright 2016 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.
 
 #ifndef WebMouseWheelEvent_h
 #define WebMouseWheelEvent_h
 
 #include "WebInputEvent.h"
 
 namespace blink {
@@ skipping 35 matching lines @@
 
   bool scrollByPage;
   bool hasPreciseScrollingDeltas;
 
   RailsMode railsMode;
 
   // Whether the event is blocking, non-blocking, all event
   // listeners were passive or was forced to be non-blocking.
   DispatchType dispatchType;
 
-  WebMouseWheelEvent()
-      : WebMouseEvent(sizeof(WebMouseWheelEvent)),
+  WebMouseWheelEvent(Type type, int modifiers, double timeStampSeconds)
+      : WebMouseEvent(sizeof(WebMouseWheelEvent),
+                      type,
+                      modifiers,
+                      timeStampSeconds),
         deltaX(0.0f),
         deltaY(0.0f),
         wheelTicksX(0.0f),
         wheelTicksY(0.0f),
         accelerationRatioX(1.0f),
         accelerationRatioY(1.0f),
         resendingPluginId(-1),
         phase(PhaseNone),
         momentumPhase(PhaseNone),
         scrollByPage(false),
         hasPreciseScrollingDeltas(false),
         railsMode(RailsModeFree),
         dispatchType(Blocking) {}
+
+  WebMouseWheelEvent()
+      : WebMouseEvent(sizeof(WebMouseWheelEvent)),
+        deltaX(0.0f),
+        deltaY(0.0f),
+        wheelTicksX(0.0f),
+        wheelTicksY(0.0f),
+        accelerationRatioX(1.0f),
+        accelerationRatioY(1.0f),
+        resendingPluginId(-1),
+        phase(PhaseNone),
+        momentumPhase(PhaseNone),
+        railsMode(RailsModeFree),
+        dispatchType(Blocking) {}
 };
 #pragma pack(pop)
 
 }  // namespace blink
 
 #endif  // WebMouseWheelEvent_h