Revert of Handle pointer-events: none in browser process hittesting.

content/browser/renderer_host/render_widget_host_view_mac.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <IOSurface/IOSurface.h>
 #include <stddef.h>
@@ skipping 331 matching lines @@
   void UnlockCompositingSurface() override;
 
   bool LockMouse() override;
   void UnlockMouse() override;
   void WheelEventAck(const blink::WebMouseWheelEvent& event,
                      InputEventAckState ack_result) override;
 
   scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget() override;
 
   uint32_t GetSurfaceIdNamespace() override;
-  uint32_t SurfaceIdNamespaceAtPoint(cc::SurfaceHittestDelegate* delegate,
-                                     const gfx::Point& point,
+  uint32_t SurfaceIdNamespaceAtPoint(const gfx::Point& point,
                                      gfx::Point* transformed_point) override;
   // Returns true when we can do SurfaceHitTesting for the event type.
   bool ShouldRouteEvent(const blink::WebInputEvent& event) const;
   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;
   void TransformPointToLocalCoordSpace(const gfx::Point& point,
                                        cc::SurfaceId original_surface,
                                        gfx::Point* transformed_point) override;
 
   // IPC::Sender implementation.
@@ skipping 246 matching lines @@
 
   // Factory used to safely scope delayed calls to ShutdownHost().
   base::WeakPtrFactory<RenderWidgetHostViewMac> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_