Locale access from the IO thread for null language tags in speech.

chrome/browser/speech/speech_recognition_request.cc

Index: chrome/browser/speech/speech_recognition_request.cc
diff --git a/chrome/browser/speech/speech_recognition_request.cc b/chrome/browser/speech/speech_recognition_request.cc
index e17f69b1f09c2275cb31f54d1e97647c00602773..a4d01a2413efaf06ac674c808d175c987138681e 100644
--- a/chrome/browser/speech/speech_recognition_request.cc
+++ b/chrome/browser/speech/speech_recognition_request.cc
@@ -12,6 +12,7 @@
 #include "chrome/common/net/url_request_context_getter.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
+#include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_status.h"
 
 namespace {
@@ -128,8 +129,14 @@ bool SpeechRecognitionRequest::Send(const std::string& language,
   if (!language.empty()) {
     parts.push_back("lang=" + EscapeQueryParamValue(language, true));
   } else {
-    std::string app_locale = l10n_util::GetApplicationLocale("");
-    parts.push_back("lang=" + EscapeQueryParamValue(app_locale, true));
+    // If no language is provided then we use the 1st from the accepted language list.

[Leandro Graciá Gil, 2010/11/15 16:57:07]

Just noticed the line length. I'll fix this.

+    // If this list is empty then we default to "en-US".
+    // Example of the contents of this list: "es,en-GB;q=0.8" , ""
+    std::string list = url_context_->GetURLRequestContext()->accept_language();
+    size_t separator = list.find_first_of(",;");
+    std::string lang = list.substr(0, separator);
+    if (lang.empty()) lang = "en-US";
+    parts.push_back("lang=" + EscapeQueryParamValue(lang, true));
   }
 
   if (!grammar.empty())