Stop doing unnecessary UTF-8 to UTF-16 conversions in JSONWriter.

chrome/browser/ui/webui/about_ui.cc

 // Copyright (c) 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 "chrome/browser/ui/webui/about_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 690 matching lines @@
         break;
       default:
         NOTREACHED();
     }
   }
 
   std::string data;
   if (query == "json" || query == kStringsJsPath) {
     base::JSONWriter::WriteWithOptions(
           &root,
-          base::JSONWriter::OPTIONS_DO_NOT_ESCAPE |
-              base::JSONWriter::OPTIONS_PRETTY_PRINT,
+          base::JSONWriter::OPTIONS_PRETTY_PRINT,
           &data);
     if (query == kStringsJsPath)
       data = "var templateData = " + data + ";";
   } else if (query == "raw") {
     // Dump the raw counters which have changed in text format.
     data = "<pre>";
     data.append(base::StringPrintf("Counter changes in the last %ldms\n",
         static_cast<long int>(time_since_last_sample.InMilliseconds())));
     for (size_t i = 0; i < counters->GetSize(); ++i) {
       Value* entry = NULL;
@@ skipping 363 matching lines @@
   Profile* profile = Profile::FromWebUI(web_ui);
 
 #if defined(ENABLE_THEMES)
   // Set up the chrome://theme/ source.
   ThemeSource* theme = new ThemeSource(profile);
   content::URLDataSource::Add(profile, theme);
 #endif
 
   content::URLDataSource::Add(profile, new AboutUIHTMLSource(name, profile));
 }