Revert of Introduces window_finder_android.cc

chrome/browser/ui/views/tabs/window_finder_impl.cc

-// Copyright 2015 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 "chrome/browser/ui/views/tabs/window_finder_impl.h"
-
-#include "ui/aura/client/screen_position_client.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_event_dispatcher.h"
-#include "ui/compositor/layer.h"
-#include "ui/wm/core/window_util.h"
-
-gfx::NativeWindow GetLocalProcessWindowAtPointImpl(
-    const gfx::Point& screen_point,
-    const std::set<gfx::NativeWindow>& ignore,
-    const std::set<int>& ignore_ids,
-    gfx::NativeWindow window) {
-  if (ignore.find(window) != ignore.end())
-    return nullptr;
-
-  if (!window->IsVisible())
-    return nullptr;
-
-  if (ignore_ids.find(window->id()) != ignore_ids.end())
-    return nullptr;
-
-  if (window->layer()->type() == ui::LAYER_TEXTURED) {
-    // Returns the window that has visible layer and can hit the
-    // |screen_point|, because we want to detach the tab as soon as
-    // the dragging mouse moved over to the window that can hide the
-    // moving tab.
-    aura::client::ScreenPositionClient* client =
-        aura::client::GetScreenPositionClient(window->GetRootWindow());
-    gfx::Point local_point = screen_point;
-    client->ConvertPointFromScreen(window, &local_point);
-    return window->GetEventHandlerForPoint(local_point) ? window : nullptr;
-  }
-
-  for (aura::Window::Windows::const_reverse_iterator i =
-           window->children().rbegin();
-       i != window->children().rend(); ++i) {
-    gfx::NativeWindow result =
-        GetLocalProcessWindowAtPointImpl(screen_point, ignore, ignore_ids, *i);
-    if (result)
-      return result;
-  }
-  return nullptr;
-}