browser: Move window sizer to subdir.

chrome/browser/ui/window_sizer_gtk.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 "chrome/browser/ui/window_sizer.h"
-
-#include <gtk/gtk.h>
-
-#include "base/logging.h"
-#include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_list.h"
-#include "chrome/browser/ui/browser_window.h"
-#include "ui/gfx/screen.h"
-
-// Used to pad the default new window size.  On Windows, this is also used for
-// positioning new windows (each window is offset from the previous one).
-// Since we don't position windows, it's only used for the default new window
-// size.
-const int WindowSizer::kWindowTilePixels = 10;
-
-// static
-gfx::Point WindowSizer::GetDefaultPopupOrigin(const gfx::Size& size) {
-  gfx::Rect monitor_bounds = gfx::Screen::GetPrimaryDisplay().work_area();
-  gfx::Point corner(monitor_bounds.x(), monitor_bounds.y());
-  if (Browser* browser = BrowserList::GetLastActive()) {
-    GtkWindow* window =
-        reinterpret_cast<GtkWindow*>(browser->window()->GetNativeWindow());
-    int x = 0, y = 0;
-    gtk_window_get_position(window, &x, &y);
-    // Limit to not overflow the work area right and bottom edges.
-    gfx::Point limit(
-        std::min(x + kWindowTilePixels, monitor_bounds.right() - size.width()),
-        std::min(y + kWindowTilePixels,
-                 monitor_bounds.bottom() - size.height()));
-    // Adjust corner to now overflow the work area left and top edges, so
-    // that if a popup does not fit the title-bar is remains visible.
-    corner = gfx::Point(
-        std::max(corner.x(), limit.x()),
-        std::max(corner.y(), limit.y()));
-  }
-  return corner;
-}