Remove PlatformMouseEvent and use WebMouseEvent instead

third_party/WebKit/Source/core/layout/LayoutScrollbarTheme.h

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef LayoutScrollbarTheme_h
 #define LayoutScrollbarTheme_h
 
 #include "platform/scroll/ScrollbarTheme.h"
 
 namespace blink {
 
-class PlatformMouseEvent;
+class WebMouseEvent;
 
 class LayoutScrollbarTheme final : public ScrollbarTheme {
  public:
   ~LayoutScrollbarTheme() override {}
 
   int scrollbarThickness(ScrollbarControlSize controlSize) override {
     return ScrollbarTheme::theme().scrollbarThickness(controlSize);
   }
 
   WebScrollbarButtonsPlacement buttonsPlacement() const override {
     return ScrollbarTheme::theme().buttonsPlacement();
   }
 
   void paintScrollCorner(GraphicsContext&,
                          const DisplayItemClient&,
                          const IntRect& cornerRect) override;
 
   bool shouldCenterOnThumb(const ScrollbarThemeClient& scrollbar,
-                           const PlatformMouseEvent& event) override {
+                           const WebMouseEvent& event) override {
     return ScrollbarTheme::theme().shouldCenterOnThumb(scrollbar, event);
   }
   bool shouldSnapBackToDragOrigin(const ScrollbarThemeClient& scrollbar,
-                                  const PlatformMouseEvent& event) override {
+                                  const WebMouseEvent& event) override {
     return ScrollbarTheme::theme().shouldSnapBackToDragOrigin(scrollbar, event);
   }
 
   double initialAutoscrollTimerDelay() override {
     return ScrollbarTheme::theme().initialAutoscrollTimerDelay();
   }
   double autoscrollTimerDelay() override {
     return ScrollbarTheme::theme().autoscrollTimerDelay();
   }
 
@@ skipping 42 matching lines @@
                       const Scrollbar&,
                       const IntRect&) override;
 
   IntRect constrainTrackRectToTrackPieces(const ScrollbarThemeClient&,
                                           const IntRect&) override;
 };
 
 }  // namespace blink
 
 #endif  // LayoutScrollbarTheme_h