Content side of languagechange event fired on accept languages changes.

content/shell/renderer/test_runner/web_test_proxy.cc

Index: content/shell/renderer/test_runner/web_test_proxy.cc
diff --git a/content/shell/renderer/test_runner/web_test_proxy.cc b/content/shell/renderer/test_runner/web_test_proxy.cc
index 58dd26c3ef9bb87d7dd51bf6ab262f18cec48b54..2126c54c63de1f824d52e62b512a957d7cd75cd0 100644
--- a/content/shell/renderer/test_runner/web_test_proxy.cc
+++ b/content/shell/renderer/test_runner/web_test_proxy.cc
@@ -317,6 +317,7 @@ void WebTestProxyBase::Reset() {
   resource_identifier_map_.clear();
   log_console_output_ = true;
   if (m_midiClient.get()) m_midiClient->resetMock();
+  accept_languages_ = "en-US";
 }
 
 WebSpellCheckClient* WebTestProxyBase::GetSpellCheckClient() const {
@@ -418,6 +419,14 @@ void WebTestProxyBase::didCompositeAndReadback(const SkBitmap& bitmap) {
   composite_and_readback_callbacks_.pop_front();
 }
 
+void WebTestProxyBase::SetAcceptLanguages(const std::string& accept_languages) {
+  bool notify = accept_languages_ != accept_languages;
+  accept_languages_ = accept_languages;
+
+  if (notify)
+    GetWebView()->acceptLanguagesChanged();
+}
+
 void WebTestProxyBase::CapturePixelsForPrinting(
     const base::Callback<void(const SkBitmap&)>& callback) {
   web_widget_->layout();
@@ -1113,4 +1122,8 @@ void WebTestProxyBase::ResetInputMethod() {
   if (web_widget_) web_widget_->confirmComposition();
 }
 
+blink::WebString WebTestProxyBase::acceptLanguages() {
+  return WebString::fromUTF8(accept_languages_);
+}
+
 }  // namespace content