Allows to dump current snippets to a json in the Downloads folder.

components/ntp_snippets/ntp_snippets_service.cc

 // Copyright 2015 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 "components/ntp_snippets/ntp_snippets_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <utility>
 
@@ skipping 123 matching lines @@
       return false;
     scoped_ptr<NTPSnippet> snippet = NTPSnippet::CreateFromDictionary(*content);
     if (!snippet)
       return false;
 
     snippets->push_back(std::move(snippet));
   }
   return true;
 }
 
-scoped_ptr<base::ListValue> SnippetsToListValue(
-    const NTPSnippetsService::NTPSnippetStorage& snippets) {
-  scoped_ptr<base::ListValue> list(new base::ListValue);
-  for (const auto& snippet : snippets) {
-    scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
-    dict->Set(kContentInfo, snippet->ToDictionary());
-    list->Append(std::move(dict));
-  }
-  return list;
-}
 
 bool ContainsSnippet(const NTPSnippetsService::NTPSnippetStorage& haystack,
                      const scoped_ptr<NTPSnippet>& needle) {
   const GURL& url = needle->url();
   return std::find_if(haystack.begin(), haystack.end(),
                       [&url](const scoped_ptr<NTPSnippet>& snippet) {
                         return snippet->url() == url;
                       }) != haystack.end();
 }
 
@@ skipping 221 matching lines @@
                    std::make_move_iterator(new_snippets.begin()),
                    std::make_move_iterator(new_snippets.end()));
 
   // Immediately remove any already-expired snippets. This will also notify our
   // observers and schedule the expiry timer.
   RemoveExpiredSnippets();
 
   return true;
 }
 
+scoped_ptr<base::ListValue> NTPSnippetsService::SnippetsToListValue(
+    const NTPSnippetsService::NTPSnippetStorage& snippets) const {
+  scoped_ptr<base::ListValue> list(new base::ListValue);
+  for (const auto& snippet : snippets) {
+    scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
+    dict->Set(kContentInfo, snippet->ToDictionary());
+    list->Append(std::move(dict));
+  }
+  return list;
+}
+
 void NTPSnippetsService::LoadSnippetsFromPrefs() {
   bool success = LoadFromListValue(*pref_service_->GetList(prefs::kSnippets));
   DCHECK(success) << "Failed to parse snippets from prefs";
 }
 
 void NTPSnippetsService::StoreSnippetsToPrefs() {
   pref_service_->Set(prefs::kSnippets, *SnippetsToListValue(snippets_));
 }
 
 void NTPSnippetsService::LoadDiscardedSnippetsFromPrefs() {
@@ skipping 64 matching lines @@
     if (snippet->expiry_date() < next_expiry)
       next_expiry = snippet->expiry_date();
   }
   DCHECK_GT(next_expiry, expiry);
   expiry_timer_.Start(FROM_HERE, next_expiry - expiry,
                       base::Bind(&NTPSnippetsService::RemoveExpiredSnippets,
                                  base::Unretained(this)));
 }
 
 }  // namespace ntp_snippets