Use ScopedTempDir instead of DIR_TEST_DATA for creating test data.

chrome/browser/webdata/autofill_table_unittest.cc

Index: chrome/browser/webdata/autofill_table_unittest.cc
diff --git a/chrome/browser/webdata/autofill_table_unittest.cc b/chrome/browser/webdata/autofill_table_unittest.cc
index 337da0bc0dd8719c3c4113c8182c106fbe85962a..bdff3c5aea15ffef08ac45645c11163c3eb9be3f 100644
--- a/chrome/browser/webdata/autofill_table_unittest.cc
+++ b/chrome/browser/webdata/autofill_table_unittest.cc
@@ -6,6 +6,7 @@
 
 #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 "base/utf_string_conversions.h"
@@ -97,16 +98,8 @@ class AutofillTableTest : public testing::Test {
 #if defined(OS_MACOSX)
     Encryptor::UseMockKeychain(true);
 #endif
-    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");
   }
 
   static AutofillEntry MakeAutofillEntry(const char* name,
@@ -123,6 +116,7 @@ class AutofillTableTest : public testing::Test {
   }
 
   FilePath file_;
+  ScopedTempDir temp_dir_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AutofillTableTest);