Adding speech synthesis library to access TTS feature in libcros.

chrome/browser/chromeos/cros/speech_synthesis_library.cc

+// Copyright (c) 2010 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/chromeos/cros/speech_synthesis_library.h"
+
+#include "base/message_loop.h"
+#include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/chromeos/cros/cros_library.h"
+#include "third_party/cros/chromeos_speech_synthesis.h"
+
+namespace chromeos {
+
+bool SpeechSynthesisLibraryImpl::Speak(const char* text) {
+  return chromeos::Speak(text);
+}
+
+bool SpeechSynthesisLibraryImpl::SetSpeakProperties(const char* props) {
+  return chromeos::SetSpeakProperties(props);
+}
+
+bool SpeechSynthesisLibraryImpl::StopSpeaking() {
+  return chromeos::StopSpeaking();
+}
+
+bool SpeechSynthesisLibraryImpl::IsSpeaking() {
+  return chromeos::IsSpeaking();
+}
+
+}  // namespace chromeos