Use ScopedTempDir instead of DIR_TEST_DATA for creating test data.

chrome/browser/webdata/keyword_table_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 <vector>
 
 #include "base/file_util.h"
 #include "base/path_service.h"
+#include "base/scoped_temp_dir.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/webdata/keyword_table.h"
 #include "chrome/browser/webdata/web_database.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::Time;
 using base::TimeDelta;
 
 class KeywordTableTest : public testing::Test {
  public:
   KeywordTableTest() {}
   virtual ~KeywordTableTest() {}
 
  protected:
   virtual void SetUp() {
-    PathService::Get(chrome::DIR_TEST_DATA, &file_);
-    const std::string test_db = "TestWebDatabase" +
-        base::Int64ToString(Time::Now().ToTimeT()) +
-        ".db";
-    file_ = file_.AppendASCII(test_db);
-    file_util::Delete(file_, false);
-  }
-
-  virtual void TearDown() {
-    file_util::Delete(file_, false);
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    file_ = temp_dir_.path().AppendASCII("TestWebDatabase");
   }
 
   FilePath file_;
+  ScopedTempDir temp_dir_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(KeywordTableTest);
 };
 
 
 TEST_F(KeywordTableTest, Keywords) {
   WebDatabase db;
   ASSERT_EQ(sql::INIT_OK, db.Init(file_));
   KeywordTable* keyword_table = db.GetKeywordTable();
@@ skipping 378 matching lines @@
   s.BindString16(0, string16());
   s.BindInt64(1, 2000);
   EXPECT_TRUE(s.Run());
   EXPECT_TRUE(keyword_table->UpdateBackupSignature(
       WebDatabase::kCurrentVersionNumber));
 
   // GetKeywords() should erase the entry with the empty URL field.
   EXPECT_TRUE(keyword_table->GetKeywords(&keywords));
   EXPECT_EQ(1U, keywords.size());
 }