Enough hacks to make wstring printfs unneeded

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 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 "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/browsing_data/storage_partition_http_cache_data_remover.h"
@@ skipping 1169 matching lines @@
                                        const std::string& virtual_url,
                                        std::string* error) {
   // Make GURLs from URLs.
   const GURL data_gurl = GURL(data_url);
   const GURL base_gurl = GURL(base_url);
   const GURL virtual_gurl = GURL(virtual_url);
 
   // Check that the provided URLs are valid.
   // |data_url| must be a valid data URL.
   if (!data_gurl.is_valid() || !data_gurl.SchemeIs(url::kDataScheme)) {
-    base::SStringPrintf(
-        error, webview::kAPILoadDataInvalidDataURL, data_url.c_str());
+    /*base::SStringPrintf(
+        error, webview::kAPILoadDataInvalidDataURL, data_url.c_str());*/

[brucedawson, 2015/10/20 21:43:00]

String printing of GURLs (three very similar instances).

     return false;
   }
   // |base_url| must be a valid URL.
   if (!base_gurl.is_valid()) {
-    base::SStringPrintf(
-        error, webview::kAPILoadDataInvalidBaseURL, base_url.c_str());
+    /*base::SStringPrintf(
+        error, webview::kAPILoadDataInvalidBaseURL, base_url.c_str());*/
     return false;
   }
   // |virtual_url| must be a valid URL.
   if (!virtual_gurl.is_valid()) {
-    base::SStringPrintf(
-        error, webview::kAPILoadDataInvalidVirtualURL, virtual_url.c_str());
+    /*base::SStringPrintf(
+        error, webview::kAPILoadDataInvalidVirtualURL, virtual_url.c_str());*/
     return false;
   }
 
   // Set up the parameters to load |data_url| with the specified |base_url|.
   content::NavigationController::LoadURLParams load_params(data_gurl);
   load_params.load_type = content::NavigationController::LOAD_TYPE_DATA;
   load_params.base_url_for_data_url = base_gurl;
   load_params.virtual_url_for_data_url = virtual_gurl;
   load_params.override_user_agent =
       content::NavigationController::UA_OVERRIDE_INHERIT;
@@ skipping 270 matching lines @@
     scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
     DispatchEventToView(
         new GuestViewEvent(webview::kEventExitFullscreen, args.Pass()));
   }
   // Since we changed fullscreen state, sending a Resize message ensures that
   // renderer/ sees the change.
   web_contents()->GetRenderViewHost()->WasResized();
 }
 
 }  // namespace extensions