Remove some chrome dependencies from extensions app_window API

extensions/browser/image_util_unittest.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 <string>
+
+#include "extensions/browser/image_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkColor.h"
+
+namespace extensions {
+
+void RunPassTest(const std::string& css_string, SkColor expected_result) {
+  SkColor color = 0;
+  EXPECT_TRUE(image_util::ParseCSSColorString(css_string, &color));
+  EXPECT_EQ(color, expected_result);
+}
+
+void RunFailTest(const std::string& css_string) {
+  SkColor color = 0;
+  EXPECT_FALSE(image_util::ParseCSSColorString(css_string, &color));
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundNormalCSS) {
+  RunPassTest("#34006A", SkColorSetARGB(0xFF, 0x34, 0, 0x6A));
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundShortCSS) {
+  RunPassTest("#A1E", SkColorSetARGB(0xFF, 0xAA, 0x11, 0xEE));
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundCSSNoHash) {
+  RunFailTest("11FF22");
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundCSSTooShort) {
+  RunFailTest("#FF22");
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundCSSTooLong) {
+  RunFailTest("#FF22128");
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundCSSInvalid) {
+  RunFailTest("#-22128");
+}
+
+TEST(ImageUtilTest, ChangeBadgeBackgroundCSSInvalidWithPlus) {
+  RunFailTest("#+22128");
+}
+
+}  // namespace extensions