[Chromecast] Use ScopedTemp[File|Dir] in tests.

chromecast/crash/linux/minidump_writer_unittest.cc

 // Copyright 2015 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 <fstream>
 
 #include "base/base_paths.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/scoped_path_override.h"
+#include "chromecast/base/scoped_temp_file.h"
 #include "chromecast/crash/linux/crash_testing_utils.h"
 #include "chromecast/crash/linux/dump_info.h"
 #include "chromecast/crash/linux/minidump_generator.h"
 #include "chromecast/crash/linux/minidump_writer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromecast {
 namespace {
 
 const char kDumplogFile[] = "dumplog";
@@ skipping 16 matching lines @@
 
 }  // namespace
 
 class MinidumpWriterTest : public testing::Test {
  protected:
   MinidumpWriterTest() {}
   ~MinidumpWriterTest() override {}
 
   void SetUp() override {
     // Set up a temporary directory which will be used as our fake home dir.
-    base::FilePath fake_home_dir;
-    ASSERT_TRUE(base::CreateNewTempDirectory("", &fake_home_dir));
-    home_.reset(new base::ScopedPathOverride(base::DIR_HOME, fake_home_dir));
-    minidump_dir_ = fake_home_dir.Append(kMinidumpSubdir);
+    ASSERT_TRUE(fake_home_dir_.CreateUniqueTempDir());
+    home_.reset(
+        new base::ScopedPathOverride(base::DIR_HOME, fake_home_dir_.path()));
+
+    minidump_dir_ = fake_home_dir_.path().Append(kMinidumpSubdir);
     dumplog_file_ = minidump_dir_.Append(kDumplogFile);
     lockfile_path_ = minidump_dir_.Append(kLockfileName);
     metadata_path_ = minidump_dir_.Append(kMetadataName);
 
     // Create the minidump directory
     ASSERT_TRUE(base::CreateDirectory(minidump_dir_));
 
     // Lockfile will be automatically created by AppendLockFile
   }
 
   bool AppendLockFile(const DumpInfo& dump) {
     return chromecast::AppendLockFile(
         lockfile_path_.value(), metadata_path_.value(), dump);
   }
 
   FakeMinidumpGenerator fake_generator_;
   base::FilePath minidump_dir_;
   base::FilePath dumplog_file_;
   base::FilePath lockfile_path_;
   base::FilePath metadata_path_;
 
  private:
+  base::ScopedTempDir fake_home_dir_;
   scoped_ptr<base::ScopedPathOverride> home_;
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpWriterTest);
 };
 
 TEST_F(MinidumpWriterTest, Write_FailsWithIncorrectMinidumpPath) {
   MinidumpWriter writer(&fake_generator_,
                         "/path/to/wrong/dir",
                         MinidumpParams(),
                         base::Bind(&FakeDumpState));
@@ skipping 30 matching lines @@
 
 TEST_F(MinidumpWriterTest, Write_FailsWithSubdirInCorrectPath) {
   MinidumpWriter writer(&fake_generator_,
                         dumplog_file_.Append("subdir/logfile").value(),
                         MinidumpParams(),
                         base::Bind(&FakeDumpState));
   ASSERT_EQ(-1, writer.Write());
 }
 
 }  // namespace chromecast