WebMouseEvent coordinates are now fractional & private

content/browser/browser_plugin/browser_plugin_guest.cc

 // 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.
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 450 matching lines @@
     // Mark the resend source with the browser plugin's instance id, so the
     // correct browser_plugin will know to ignore the event.
     resent_gesture_event.resendingPluginId = browser_plugin_instance_id_;
     ui::LatencyInfo latency_info =
         ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
             resent_gesture_event);
     view->ProcessGestureEvent(resent_gesture_event, latency_info);
   } else if (event.type() == blink::WebInputEvent::MouseWheel) {
     blink::WebMouseWheelEvent resent_wheel_event;
     memcpy(&resent_wheel_event, &event, sizeof(blink::WebMouseWheelEvent));
-    resent_wheel_event.x += offset_from_embedder.x();
-    resent_wheel_event.y += offset_from_embedder.y();
+    resent_wheel_event.setPositionInWidget(
+        resent_wheel_event.positionInWidget().x + offset_from_embedder.x(),
+        resent_wheel_event.positionInWidget().y + offset_from_embedder.y());
     resent_wheel_event.resendingPluginId = browser_plugin_instance_id_;
     // TODO(wjmaclean): Initialize latency info correctly for OOPIFs.
     // https://crbug.com/613628
     ui::LatencyInfo latency_info(ui::SourceEventType::WHEEL);
     view->ProcessMouseWheelEvent(resent_wheel_event, latency_info);
   } else {
     NOTIMPLEMENTED();
   }
 }
 
@@ skipping 578 matching lines @@
           range, character_bounds);
 }
 #endif
 
 void BrowserPluginGuest::SetContextMenuPosition(const gfx::Point& position) {
   if (delegate_)
     delegate_->SetContextMenuPosition(position);
 }
 
 }  // namespace content