Move EscapeQueryStringValue to drive_api_util.

chrome/browser/google_apis/drive_api_util_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 "chrome/browser/google_apis/drive_api_util.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace google_apis {
+namespace drive {
+namespace util {
+
+TEST(DriveApiUtilTest, EscapeQueryStringValue) {
+  EXPECT_EQ("abcde", EscapeQueryStringValue("abcde"));
+  EXPECT_EQ("\\'", EscapeQueryStringValue("'"));
+  EXPECT_EQ("\\'abcde\\'", EscapeQueryStringValue("'abcde'"));
+}
+
+}  // namespace util
+}  // namespace drive
+}  // namespace google_apis