Update TtsPlatformImpl to support Lollipop SDK.

chrome/android/java/src/org/chromium/chrome/browser/LollipopTtsPlatformImpl.java

Index: chrome/android/java/src/org/chromium/chrome/browser/LollipopTtsPlatformImpl.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/LollipopTtsPlatformImpl.java b/chrome/android/java/src/org/chromium/chrome/browser/LollipopTtsPlatformImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..c011a6afe0dbefeb1c429bde877db86f0e60720d
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/LollipopTtsPlatformImpl.java
@@ -0,0 +1,60 @@
+// Copyright 2015 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.
+
+package org.chromium.chrome.browser;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.speech.tts.TextToSpeech;
+import android.speech.tts.UtteranceProgressListener;
+
+/**
+ * Subclass of TtsPlatformImpl for Lollipop to make use of newer APIs.
+ */
+class LollipopTtsPlatformImpl extends TtsPlatformImpl {
+    protected LollipopTtsPlatformImpl(long nativeTtsPlatformImplAndroid, Context context) {
+        super(nativeTtsPlatformImplAndroid, context);
+    }
+
+    /**
+     * Overrides TtsPlatformImpl because the API changed in Lollipop.
+     */
+    @Override
+    protected void addOnUtteranceProgressListener() {
+        mTextToSpeech.setOnUtteranceProgressListener(new UtteranceProgressListener() {
+            @Override
+            public void onDone(final String utteranceId) {
+                sendEndEventOnUiThread(utteranceId);
+            }
+
+            @Override
+            public void onError(final String utteranceId, int errorCode) {
+                sendErrorEventOnUiThread(utteranceId);
+            }
+
+            @Override
+            @Deprecated
+            public void onError(final String utteranceId) {
+            }
+
+            @Override
+            public void onStart(final String utteranceId) {
+                sendStartEventOnUiThread(utteranceId);
+            }
+        });
+    }
+
+    /**
+     * Overrides TtsPlatformImpl because the API changed in Lollipop.
+     */
+    @Override
+    protected int callSpeak(String text, float volume, int utteranceId) {
+        Bundle params = new Bundle();
+        if (volume != 1.0) {
+            params.putFloat(TextToSpeech.Engine.KEY_PARAM_VOLUME, volume);
+        }
+        return mTextToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, params,
+                Integer.toString(utteranceId));
+    }
+}