Use ScopedTempDir instead of DIR_TEST_DATA for creating test data.

chrome/browser/webdata/web_apps_table_unittest.cc

 // Copyright (c) 2011 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 "base/file_util.h"
 #include "base/path_service.h"
+#include "base/scoped_temp_dir.h"
 #include "base/string_number_conversions.h"
 #include "base/time.h"
 #include "chrome/browser/webdata/web_apps_table.h"
 #include "chrome/browser/webdata/web_database.h"
 #include "chrome/common/chrome_paths.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 using base::Time;
 
 class WebAppsTableTest : public testing::Test {
  public:
   WebAppsTableTest() {}
   virtual ~WebAppsTableTest() {}
 
  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(WebAppsTableTest);
 };
 
 
 TEST_F(WebAppsTableTest, WebAppHasAllImages) {
   WebDatabase db;
 
   ASSERT_EQ(sql::INIT_OK, db.Init(file_));
@@ skipping 77 matching lines @@
     ASSERT_EQ(16, images[0].height());
     ASSERT_EQ(32, images[1].width());
     ASSERT_EQ(32, images[1].height());
   } else {
     ASSERT_EQ(32, images[0].width());
     ASSERT_EQ(32, images[0].height());
     ASSERT_EQ(16, images[1].width());
     ASSERT_EQ(16, images[1].height());
   }
 }