Adding support for the SpeechRecognition.maxAlternatives JS API parameter (Speech CL2.5)

content/browser/speech/speech_recognition_engine.cc

 // Copyright (c) 2012 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 "content/browser/speech/speech_recognition_engine.h"
 
 namespace {
 const int kDefaultConfigSampleRate = 8000;
 const int kDefaultConfigBitsPerSample = 16;
+const uint32 kDefaultMaxHypotheses = 1;
 }  // namespace
 
 namespace speech {
 
 SpeechRecognitionEngine::Config::Config()
     : filter_profanities(false),
+      max_hypotheses(kDefaultMaxHypotheses),
       audio_sample_rate(kDefaultConfigSampleRate),
       audio_num_bits_per_sample(kDefaultConfigBitsPerSample) {
 }
 
 SpeechRecognitionEngine::Config::~Config() {
 }
 
 }  // namespace speech