Parse /etc/lsb-release only once on ChromeOS

chrome/browser/chromeos/system_logs/lsb_release_log_source_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 "chrome/browser/chromeos/system_logs/lsb_release_log_source.h"
-
-#include "base/basictypes.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace chromeos {
-
-TEST(LSBReleaseLogSource, BasicFunctionality) {
-  std::string data("key=value\nkey2 =  value2   ");
-  SystemLogsResponse response;
-  LsbReleaseLogSource::ParseLSBRelease(data, &response);
-  EXPECT_EQ(2U, response.size());
-  EXPECT_EQ("value", response["key"]);
-
-  // Make sure extra white space is removed correctly. First from the key and
-  // then from the value.
-  EXPECT_EQ(1U, response.count("key2"));
-  EXPECT_EQ("value2", response["key2"]);
-}
-
-TEST(LSBReleaseLogSource, ValueMissing) {
-  std::string data("key=value\nkey2=\nkey3");
-  SystemLogsResponse response;
-  LsbReleaseLogSource::ParseLSBRelease(data, &response);
-  EXPECT_EQ(2U, response.size());
-  EXPECT_EQ("value", response["key"]);
-  EXPECT_EQ("<no value>", response["key2"]);
-  EXPECT_EQ(0U, response.count("key3"));
-}
-
-TEST(LSBReleaseLogSource, BrokenUTF8) {
-  std::string data("key=value\nkey2=\nkey3=\xFCts\nkey4=value4\nkey5\xFC=foo");
-  SystemLogsResponse response;
-  LsbReleaseLogSource::ParseLSBRelease(data, &response);
-  EXPECT_EQ("<invalid characters in log entry>", response["key3"]);
-  EXPECT_EQ("value4", response["key4"]);
-  EXPECT_EQ(0U, response.count("key5"));
-}
-
-TEST(LSBReleasLogSource, NoKeyValuePair) {
-  SystemLogsResponse response;
-
-  std::string contents1("random text without a meaning");
-  LsbReleaseLogSource::ParseLSBRelease(contents1, &response);
-  EXPECT_TRUE(response.empty());
-}
-
-TEST(LSBReleasLogSource, EmptyInput) {
-  SystemLogsResponse response;
-  std::string contents2("");
-  LsbReleaseLogSource::ParseLSBRelease(contents2, &response);
-  EXPECT_TRUE(response.empty());
-}
-
-}  // namespace chromeos