Remove some confusing code from ToplevelWindowEventHandler::HandleMousePressed()

ash/wm/workspace/workspace_event_handler.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 "ash/wm/workspace/workspace_event_handler.h"
 
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/touch/touch_uma.h"
@@ skipping 59 matching lines @@
       multi_window_resize_controller_.Show(target, component,
                                            event->location());
       break;
     }
     case ui::ET_MOUSE_ENTERED:
       break;
     case ui::ET_MOUSE_CAPTURE_CHANGED:
     case ui::ET_MOUSE_EXITED:
       break;
     case ui::ET_MOUSE_PRESSED: {
-      // Maximize behavior is implemented as post-target handling so the target
-      // can cancel it.
-      if (ui::EventCanceledDefaultHandling(*event)) {
-        ToplevelWindowEventHandler::OnMouseEvent(event);
-        return;
-      }
       wm::WindowState* target_state = wm::GetWindowState(target);
       if (event->flags() & ui::EF_IS_DOUBLE_CLICK &&
           event->IsOnlyLeftMouseButton() &&
           target->delegate()->GetNonClientComponent(event->location()) ==
           HTCAPTION) {
         ash::Shell::GetInstance()->metrics()->RecordUserMetricsAction(
             ash::UMA_TOGGLE_MAXIMIZE_CAPTION_CLICK);
         ToggleMaximizedState(target_state);
       }
       multi_window_resize_controller_.Hide();
@@ skipping 75 matching lines @@
                                      origin.y(),
                                      work_area.width(),
                                      target->bounds().height()));
       }
     }
   }
 }
 
 }  // namespace internal
 }  // namespace ash