Make UTF16ToASCII and UTF16TOUTF8 take a StringPiece

android_webview/renderer/aw_content_renderer_client.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/renderer/aw_content_renderer_client.h"
 
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/render_view_messages.h"
 #include "android_webview/common/url_constants.h"
 #include "android_webview/renderer/aw_content_settings_client.h"
@@ skipping 93 matching lines @@
 
 void AwContentRendererClient::GetNavigationErrorStrings(
     content::RenderView* /* render_view */,
     blink::WebFrame* /* frame */,
     const blink::WebURLRequest& failed_request,
     const blink::WebURLError& error,
     std::string* error_html,
     base::string16* error_description) {
   if (error_html) {
     GURL error_url(failed_request.url());
-    std::string err = base::UTF16ToUTF8(error.localizedDescription);
+    std::string err =
+        base::UTF16ToUTF8(base::StringPiece16(error.localizedDescription));
     std::string contents;
     if (err.empty()) {
       contents = AwResource::GetNoDomainPageContent();
     } else {
       contents = AwResource::GetLoadErrorPageContent();
       base::ReplaceSubstringsAfterOffset(&contents, 0, "%e", err);
     }
 
     base::ReplaceSubstringsAfterOffset(&contents, 0, "%s",
         net::EscapeForHTML(error_url.possibly_invalid_spec()));
@@ skipping 24 matching lines @@
 
 bool AwContentRendererClient::ShouldOverridePageVisibilityState(
     const content::RenderFrame* render_frame,
     blink::WebPageVisibilityState* override_state) {
   // webview is always visible due to rendering requirements.
   *override_state = blink::WebPageVisibilityStateVisible;
   return true;
 }
 
 }  // namespace android_webview