Changes MouseEvent constructor to take changed_button_flags.

ui/views/widget/root_view.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 "ui/views/widget/root_view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 506 matching lines @@
 
 void RootView::OnMouseCaptureLost() {
   // TODO: this likely needs to reset touch handler too.
 
   if (mouse_pressed_handler_ || gesture_handler_) {
     // Synthesize a release event for UpdateCursor.
     if (mouse_pressed_handler_) {
       gfx::Point last_point(last_mouse_event_x_, last_mouse_event_y_);
       ui::MouseEvent release_event(ui::ET_MOUSE_RELEASED,
                                    last_point, last_point,
-                                   last_mouse_event_flags_);
+                                   last_mouse_event_flags_,
+                                   0);
       UpdateCursor(release_event);
     }
     // We allow the view to delete us from OnMouseCaptureLost. As such,
     // configure state such that we're done first, then call View.
     View* mouse_pressed_handler = mouse_pressed_handler_;
     View* gesture_handler = gesture_handler_;
     SetMouseHandler(NULL);
     if (mouse_pressed_handler)
       mouse_pressed_handler->OnMouseCaptureLost();
     else
@@ skipping 200 matching lines @@
       return;
   }
 }
 
 bool RootView::CanDispatchToTarget(ui::EventTarget* target) {
   return event_dispatch_target_ == target;
 }
 
 }  // namespace internal
 }  // namespace views