Adds chromium side plumbing to pass speech input calls back and forth with WebKit.

chrome/renderer/speech_input_dispatcher.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/renderer/speech_input_dispatcher.h"
+
+#include "chrome/renderer/render_view.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebCString.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebSpeechInputListener.h"
+
+using WebKit::WebFrame;
+
+SpeechInputDispatcher::SpeechInputDispatcher(
+    RenderView* render_view, WebKit::WebSpeechInputListener* listener)
+    : render_view_(render_view),
+      listener_(listener) {
+}
+
+bool SpeechInputDispatcher::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(SpeechInputDispatcher, message)
+    IPC_MESSAGE_HANDLER(ViewMsg_SpeechInput_SetRecognitionResult,
+                        OnSpeechRecognitionResult)
+    IPC_MESSAGE_HANDLER(ViewMsg_SpeechInput_RecordingComplete,
+                        OnSpeechRecordingComplete)
+    IPC_MESSAGE_HANDLER(ViewMsg_SpeechInput_RecognitionComplete,
+                        OnSpeechRecognitionComplete)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+bool SpeechInputDispatcher::startRecognition() {
+  render_view_->Send(new ViewHostMsg_SpeechInput_StartRecognition(
+      render_view_->routing_id()));
+  return true;
+}
+
+void SpeechInputDispatcher::cancelRecognition() {
+  render_view_->Send(new ViewHostMsg_SpeechInput_CancelRecognition(
+      render_view_->routing_id()));
+}
+
+void SpeechInputDispatcher::stopRecording() {
+  render_view_->Send(new ViewHostMsg_SpeechInput_StopRecording(
+      render_view_->routing_id()));
+}
+
+void SpeechInputDispatcher::OnSpeechRecognitionResult(
+    const string16& result) {
+  listener_->setRecognitionResult(result);
+}
+
+void SpeechInputDispatcher::OnSpeechRecordingComplete() {
+  listener_->didCompleteRecording();
+}
+
+void SpeechInputDispatcher::OnSpeechRecognitionComplete() {
+  listener_->didCompleteRecognition();
+}