It is time.

ui/views/widget/tooltip_manager.cc

-// Copyright (c) 2011 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/widget/tooltip_manager.h"
-
-#include "ui/gfx/rect.h"
-#include "ui/gfx/screen.h"
-#include "ui/gfx/text_elider.h"
-
-namespace views {
-
-const size_t kMaxTooltipLength = 1024;
-
-// static
-const char TooltipManager::kGroupingPropertyKey[] = "GroupingPropertyKey";
-
-// static
-int TooltipManager::GetMaxWidth(int x, int y, gfx::NativeView context) {
-  return GetMaxWidth(gfx::Screen::GetScreenFor(context)->GetDisplayNearestPoint(
-                         gfx::Point(x, y)));
-}
-
-// static
-int TooltipManager::GetMaxWidth(const gfx::Display& display) {
-  return (display.bounds().width() + 1) / 2;
-}
-
-// static
-void TooltipManager::TrimTooltipText(base::string16* text) {
-  // Clamp the tooltip length to kMaxTooltipLength so that we don't
-  // accidentally DOS the user with a mega tooltip.
-  *text = gfx::TruncateString(*text, kMaxTooltipLength, gfx::WORD_BREAK);
-}
-
-}  // namespace views