Page zoom improvements

chrome/browser/page_zoom.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.

[jam, 2011/11/21 22:20:54]

for these three files, can we avoid filenames that match files in content? that
makes it hard to open them in IDEs and is generally confusing.

can you prefix the ones in chrome with "chrome_"? that's been the usual
convention for files that extend content's files

[csilv, 2011/11/22 00:10:59]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_PAGE_ZOOM_H_
+#define CHROME_BROWSER_PAGE_ZOOM_H_
+#pragma once
+
+#include <vector>
+
+namespace page_zoom {
+
+// Return a sorted vector of zoom factors. The vector will consist of preset
+// values along with a custom value (if the custom value is not already
+// represented.)
+std::vector<double> PresetZoomFactors(double custom_factor);
+
+// Return a sorted vector of zoom levels. The vector will consist of preset
+// values along with a custom value (if the custom value is not already
+// represented.)
+std::vector<double> PresetZoomLevels(double custom_level);
+
+}  // namespace page_zoom
+
+#endif  // CHROME_BROWSER_PAGE_ZOOM_H_