Drop |languages| from {Format,Elide}Url* and IDNToUnicode

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index e7a6f068d95f62847bf43d66523bcf9adec9718a..979a15980a61753d3adc51a3a77b198ad9ee6793 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -177,9 +177,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   blink::WebGraphicsContext3DProvider*
   createSharedOffscreenGraphicsContext3DProvider() override;
   blink::WebCompositorSupport* compositorSupport() override;
-  blink::WebString convertIDNToUnicode(
-      const blink::WebString& host,
-      const blink::WebString& languages) override;
+  blink::WebString convertIDNToUnicode(const blink::WebString& host) override;
   void connectToRemoteService(const char* name,
                               mojo::ScopedMessagePipeHandle handle) override;
   void startListening(blink::WebPlatformEventType,