Convert JsonWriter::Write to taking a const ref for the in-param

chrome/test/chromedriver/chrome_launcher.cc

 // Copyright (c) 2013 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/test/chromedriver/chrome_launcher.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/base64.h"
@@ skipping 674 matching lines @@
             << std::endl << "key from header:   " << public_key_base64
             << std::endl << "key from manifest: " << manifest_key_base64
             << std::endl << "generated extension id from header key:   " << id
             << std::endl << "generated extension id from manifest key: "
             << manifest_id;
       }
       id = manifest_id;
     }
   } else {
     manifest->SetString("key", public_key_base64);
-    base::JSONWriter::Write(manifest, &manifest_data);
+    base::JSONWriter::Write(*manifest, &manifest_data);
     if (base::WriteFile(
             manifest_path, manifest_data.c_str(), manifest_data.size()) !=
         static_cast<int>(manifest_data.size())) {
       return Status(kUnknownError, "cannot add 'key' to manifest");
     }
   }
 
   // Get extension's background page URL, if there is one.
   std::string bg_page_tmp;
   Status status = GetExtensionBackgroundPage(manifest, id, &bg_page_tmp);
@@ skipping 75 matching lines @@
   }
 
   if (custom_prefs) {
     for (base::DictionaryValue::Iterator it(*custom_prefs); !it.IsAtEnd();
          it.Advance()) {
       prefs->Set(it.key(), it.value().DeepCopy());
     }
   }
 
   std::string prefs_str;
-  base::JSONWriter::Write(prefs, &prefs_str);
+  base::JSONWriter::Write(*prefs, &prefs_str);
   VLOG(0) << "Populating " << path.BaseName().value()
           << " file: " << PrettyPrintValue(*prefs);
   if (static_cast<int>(prefs_str.length()) != base::WriteFile(
           path, prefs_str.c_str(), prefs_str.length())) {
     return Status(kUnknownError, "failed to write prefs file");
   }
   return Status(kOk);
 }
 
 Status PrepareUserDataDir(
@@ skipping 39 matching lines @@
   // Write empty "First Run" file, otherwise Chrome will wipe the default
   // profile that was written.
   if (base::WriteFile(
           user_data_dir.Append(chrome::kFirstRunSentinel), "", 0) != 0) {
     return Status(kUnknownError, "failed to write first run file");
   }
   return Status(kOk);
 }
 
 }  // namespace internal