Replicate to all renderers the accepted languages set by a layout test.

components/test_runner/web_test_proxy.cc

Index: components/test_runner/web_test_proxy.cc
diff --git a/components/test_runner/web_test_proxy.cc b/components/test_runner/web_test_proxy.cc
index 39da57559a1b622b4013c63ce803e2832c587ef6..413e484cfbd0b312f84c45c70ba99afb848a8c42 100644
--- a/components/test_runner/web_test_proxy.cc
+++ b/components/test_runner/web_test_proxy.cc
@@ -154,7 +154,6 @@ blink::WebView* WebTestProxyBase::GetWebView() const {
 void WebTestProxyBase::Reset() {
   drag_image_.reset();
   animate_scheduled_ = false;
-  accept_languages_ = "";
 }
 
 blink::WebSpellCheckClient* WebTestProxyBase::GetSpellCheckClient() const {
@@ -224,14 +223,6 @@ void WebTestProxyBase::DrawSelectionRect(SkCanvas* canvas) {
   canvas->drawIRect(rect, paint);
 }
 
-void WebTestProxyBase::SetAcceptLanguages(const std::string& accept_languages) {
-  bool notify = accept_languages_ != accept_languages;
-  accept_languages_ = accept_languages;
-
-  if (notify)
-    GetWebView()->acceptLanguagesChanged();
-}
-
 void WebTestProxyBase::CopyImageAtAndCapturePixels(
     int x, int y, const base::Callback<void(const SkBitmap&)>& callback) {
   DCHECK(!callback.is_null());
@@ -534,7 +525,8 @@ void WebTestProxyBase::ResetInputMethod() {
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
-  return blink::WebString::fromUTF8(accept_languages_);
+  return blink::WebString::fromUTF8(
+      test_interfaces_->GetTestRunner()->GetAcceptLanguages());
 }
 
 }  // namespace test_runner