Move ReadFileToString to the base namespace.

chrome/browser/media/webrtc_log_uploader_unittest.cc

 // Copyright 2013 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 "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/platform_file.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/time/time.h"
 #include "chrome/browser/media/webrtc_log_uploader.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 const char kTestReportId[] = "123456789";
 const char kTestTime[] = "987654321";
 
 class WebRtcLogUploaderTest : public testing::Test {
  public:
   WebRtcLogUploaderTest() {}
 
   bool VerifyNumberOfLinesAndContentsOfLastLine(int expected_lines) {
     std::string contents;
-    int read = file_util::ReadFileToString(test_list_path_, &contents);
+    int read = base::ReadFileToString(test_list_path_, &contents);
     EXPECT_GT(read, 0);
     if (read <= 0)
       return false;
 
     // Verify expected number of lines. Since every line should end with '\n',
     // there should be an additional empty line after splitting.
     std::vector<std::string> lines;
     base::SplitString(contents, '\n', &lines);
     EXPECT_EQ(expected_lines + 1, static_cast<int>(lines.size()));
     if (expected_lines + 1 != static_cast<int>(lines.size()))
@@ skipping 67 matching lines @@
 
   webrtc_log_uploader_->AddUploadedLogInfoToUploadListFile(kTestReportId);
   ASSERT_TRUE(VerifyNumberOfLinesAndContentsOfLastLine(expected_line_limit));
 
   ASSERT_TRUE(AddLinesToTestFile(10));
   ASSERT_TRUE(VerifyNumberOfLinesAndContentsOfLastLine(60));
 
   webrtc_log_uploader_->AddUploadedLogInfoToUploadListFile(kTestReportId);
   ASSERT_TRUE(VerifyNumberOfLinesAndContentsOfLastLine(expected_line_limit));
 }