Cleanup: Remove unused ntp_background_util.* component.

chrome/browser/ui/ntp_background_util.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/ntp_background_util.h"
-
-#include <cmath>
-
-#include "base/logging.h"
-#include "chrome/browser/themes/theme_properties.h"
-#include "grit/theme_resources.h"
-#include "ui/base/theme_provider.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/image/image_skia.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/skia_util.h"
-
-namespace {
-
-void PaintThemeBackground(
-    gfx::Canvas* canvas, gfx::ImageSkia* ntp_background, int tiling,
-    int alignment, const gfx::Rect& area, int tab_contents_height) {
-  int x_pos = 0;
-  int y_pos = 0;
-  int width = area.width() + ntp_background->width();
-  int height = area.height() + ntp_background->height();
-
-  if (alignment & ThemeProperties::ALIGN_BOTTOM) {
-    y_pos += area.height() + tab_contents_height - ntp_background->height();
-  } else if (alignment & ThemeProperties::ALIGN_TOP) {
-    // no op
-  } else {  // ALIGN_CENTER
-    y_pos += std::floor(area.height() + tab_contents_height / 2.0 -
-        ntp_background->height() / 2.0 + 0.5);
-  }
-
-  if (alignment & ThemeProperties::ALIGN_RIGHT) {
-    x_pos += area.width() - ntp_background->width();
-  } else if (alignment & ThemeProperties::ALIGN_LEFT) {
-    // no op
-  } else {  // ALIGN_CENTER
-    x_pos +=
-        std::floor(area.width() / 2.0 - ntp_background->width() / 2.0 + 0.5);
-  }
-
-  if (tiling != ThemeProperties::REPEAT &&
-      tiling != ThemeProperties::REPEAT_X) {
-    width = ntp_background->width();
-  } else if (x_pos > 0) {
-    x_pos = x_pos % ntp_background->width() - ntp_background->width();
-  }
-
-  if (tiling != ThemeProperties::REPEAT &&
-      tiling != ThemeProperties::REPEAT_Y) {
-    height = ntp_background->height();
-  } else if (y_pos > 0) {
-    y_pos = y_pos % ntp_background->height() - ntp_background->height();
-  }
-
-  x_pos += area.x();
-  y_pos += area.y();
-
-  canvas->TileImageInt(*ntp_background, x_pos, y_pos, width, height);
-}
-
-}  // namespace
-
-// static
-void NtpBackgroundUtil::PaintBackgroundDetachedMode(ui::ThemeProvider* tp,
-                                                    gfx::Canvas* canvas,
-                                                    const gfx::Rect& area,
-                                                    int tab_contents_height) {
-  // Draw the background to match the new tab page.
-  canvas->FillRect(area, tp->GetColor(ThemeProperties::COLOR_NTP_BACKGROUND));
-
-  if (tp->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
-    int tiling = tp->GetDisplayProperty(ThemeProperties::NTP_BACKGROUND_TILING);
-    int alignment = tp->GetDisplayProperty(
-        ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
-    gfx::ImageSkia* ntp_background =
-        tp->GetImageSkiaNamed(IDR_THEME_NTP_BACKGROUND);
-
-    PaintThemeBackground(
-        canvas, ntp_background, tiling, alignment, area, tab_contents_height);
-  }
-}