Break apart WebGestureEvent from WebInputEvent.

content/browser/renderer_host/input/web_input_event_builders_mac.mm

 // Copyright 2015 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.
 
 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006-2009 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 19 matching lines @@
 
 #include "content/browser/renderer_host/input/web_input_event_builders_mac.h"
 
 #import <ApplicationServices/ApplicationServices.h>
 #import <Cocoa/Cocoa.h>
 
 #include <stdint.h>
 
 #include "base/mac/sdk_forward_declarations.h"
 #include "base/strings/string_util.h"
-#include "third_party/WebKit/public/web/WebInputEvent.h"
+#include "third_party/WebKit/public/platform/WebInputEvent.h"
 #include "ui/base/cocoa/cocoa_base_utils.h"
 #include "ui/events/blink/blink_event_util.h"
 #import "ui/events/cocoa/cocoa_event_utils.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
 #include "ui/events/keycodes/keyboard_code_conversion_mac.h"
 
 namespace content {
 
 namespace {
 
@@ skipping 491 matching lines @@
       break;
     default:
       NOTIMPLEMENTED();
       result.type = blink::WebInputEvent::Undefined;
   }
 
   return result;
 }
 
 }  // namespace content