Remove MaskedViewTargeter and its derived classes

ui/views/masked_view_targeter.cc

-// Copyright 2014 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/masked_view_targeter.h"
-
-#include "ui/gfx/path.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/views/view.h"
-
-namespace views {
-
-MaskedViewTargeter::MaskedViewTargeter(View* masked_view)
-    : masked_view_(masked_view) {
-}
-
-MaskedViewTargeter::~MaskedViewTargeter() {
-}
-
-bool MaskedViewTargeter::EventLocationInsideBounds(
-    ui::EventTarget* target,
-    const ui::LocatedEvent& event) const {
-  View* view = static_cast<View*>(target);
-  if (view == masked_view_) {
-    gfx::Path mask;
-    if (!GetHitTestMask(view, &mask))
-      return ViewTargeter::EventLocationInsideBounds(view, event);
-
-    gfx::Size size = view->bounds().size();
-    SkRegion clip_region;
-    clip_region.setRect(0, 0, size.width(), size.height());
-
-    gfx::RectF bounds_f = ViewTargeter::BoundsForEvent(event);
-    if (view->parent())
-      View::ConvertRectToTarget(view->parent(), view, &bounds_f);
-    gfx::Rect bounds = gfx::ToEnclosingRect(bounds_f);
-
-    SkRegion mask_region;
-    return mask_region.setPath(mask, clip_region) &&
-           mask_region.intersects(RectToSkIRect(bounds));
-  }
-
-  return ViewTargeter::EventLocationInsideBounds(view, event);
-}
-
-}  // namespace views