Changes MouseEvent constructor to take changed_button_flags.

ash/wm/immersive_fullscreen_controller_unittest.cc

 // Copyright 2013 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 "ash/wm/immersive_fullscreen_controller.h"
 
 #include "ash/display/display_manager.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 312 matching lines @@
   aura::test::EventGenerator& event_generator(GetEventGenerator());
 
   gfx::Rect top_container_bounds_in_screen =
       top_container()->GetBoundsInScreen();
   // A position along the top edge of TopContainerView in screen coordinates.
   gfx::Point top_edge_pos(top_container_bounds_in_screen.x() + 100,
                           top_container_bounds_in_screen.y());
 
   // Mouse wheel event does nothing.
   ui::MouseEvent wheel(
-      ui::ET_MOUSEWHEEL, top_edge_pos, top_edge_pos, ui::EF_NONE);
+      ui::ET_MOUSEWHEEL, top_edge_pos, top_edge_pos, ui::EF_NONE, ui::EF_NONE);
   event_generator.Dispatch(&wheel);
   EXPECT_FALSE(top_edge_hover_timer_running());
 
   // Move to top edge of screen starts hover timer running. We cannot use
   // MoveMouse() because MoveMouse() stops the timer if it started running.
   event_generator.MoveMouseTo(top_edge_pos);
   EXPECT_TRUE(top_edge_hover_timer_running());
   EXPECT_EQ(top_edge_pos.x(), mouse_x_when_hit_top());
 
   // Moving |ImmersiveFullscreenControllerTest::kMouseRevealBoundsHeight| down
@@ skipping 605 matching lines @@
   // Disabling immersive fullscreen maintains the user's auto-hide selection.
   SetEnabled(false);
   window()->SetProperty(aura::client::kShowStateKey,
                         ui::SHOW_STATE_NORMAL);
   EXPECT_EQ(ash::SHELF_AUTO_HIDE, shelf->visibility_state());
 }
 
 }  // namespase ash
 
 #endif  // defined(OS_CHROMEOS)