Implement web speech synthesis.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index f3a3a3e2320c334dcd46fb4741bbdf408a0854df..6a23f777cb8b4c971bf8b7e39fc6c2f04c628228 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -67,6 +67,7 @@
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/speech/chrome_speech_recognition_manager_delegate.h"
+#include "chrome/browser/speech/tts_request_handler.h"
 #include "chrome/browser/spellchecker/spellcheck_message_filter.h"
 #include "chrome/browser/ssl/ssl_add_certificate.h"
 #include "chrome/browser/ssl/ssl_blocking_page.h"
@@ -1690,6 +1691,7 @@ void ChromeContentBrowserClient::ResourceDispatcherHostCreated() {
   return g_browser_process->ResourceDispatcherHostCreated();
 }
 
+// TODO(tommi): Rename from Get to Create.
 content::SpeechRecognitionManagerDelegate*
     ChromeContentBrowserClient::GetSpeechRecognitionManagerDelegate() {
 #if defined(ENABLE_INPUT_SPEECH)
@@ -1699,6 +1701,12 @@ content::SpeechRecognitionManagerDelegate*
 #endif
 }
 
+scoped_ptr<content::TtsDispatcherHostDelegate>
+ChromeContentBrowserClient::CreateTtsDispatcherHostDelegate() {
+  return scoped_ptr<content::TtsDispatcherHostDelegate>(
+      new TtsRequestHandler());
+}
+
 net::NetLog* ChromeContentBrowserClient::GetNetLog() {
   return g_browser_process->net_log();
 }