Upgrade old app host to new app launcher on startup

This patch is a continuation of https://codereview.chromium.org/16805002/.

BUG=248825

Review URL: https://chromiumcodereview.appspot.com/17022015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@209604 0039d316-1c4b-4281-b951-d872f2087c98
void AppListController::UpdateArrowPositionAndAnchorPoint(
    const gfx::Point& cursor) {
  gfx::Screen* screen =
      gfx::Screen::GetScreenFor(current_view_->GetWidget()->GetNativeView());
  gfx::Display display = screen->GetDisplayNearestPoint(cursor);

  current_view_->SetBubbleArrow(views::BubbleBorder::FLOAT);
  current_view_->SetAnchorPoint(FindAnchorPoint(display, cursor));
}

void AppListController::UpdateArrowPositionAndAnchorPoint(
    const gfx::Point& cursor) {
  gfx::Screen* screen =
      gfx::Screen::GetScreenFor(current_view_->GetWidget()->GetNativeView());
  gfx::Display display = screen->GetDisplayNearestPoint(cursor);

  current_view_->SetBubbleArrow(views::BubbleBorder::FLOAT);
  current_view_->SetAnchorPoint(FindAnchorPoint(display, cursor));
}
