[NTP Snippets] Fetcher: remove |overwrite| param

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 "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/location.h"
@@ skipping 49 matching lines @@
   registry->RegisterListPref(prefs::kSnippets);
 }
 
 void NTPSnippetsService::Init(bool enabled) {
   // If enabled, get any existing snippets immediately from prefs.
   if (enabled) {
     LoadFromPrefs();
 
     // If we don't have any snippets yet, start a fetch.
     if (snippets_.empty())
-      FetchSnippets(false);
+      FetchSnippets();
   }
 
   // The scheduler only exists on Android so far, it's null on other platforms.
   if (!scheduler_)
     return;
 
   if (enabled)
     scheduler_->Schedule(kDefaultFetchingIntervalSeconds);
   else
     scheduler_->Unschedule();
 }
 
 void NTPSnippetsService::Shutdown() {
   FOR_EACH_OBSERVER(NTPSnippetsServiceObserver, observers_,
                     NTPSnippetsServiceShutdown(this));
   loaded_ = false;
 }
 
-void NTPSnippetsService::FetchSnippets(bool overwrite) {
-  snippets_fetcher_->FetchSnippets(overwrite);
+void NTPSnippetsService::FetchSnippets() {
+  snippets_fetcher_->FetchSnippets();
 }
 
 void NTPSnippetsService::AddObserver(NTPSnippetsServiceObserver* observer) {
   observers_.AddObserver(observer);
   if (loaded_)
     observer->NTPSnippetsServiceLoaded(this);
 }
 
 void NTPSnippetsService::RemoveObserver(NTPSnippetsServiceObserver* observer) {
   observers_.RemoveObserver(observer);
@@ skipping 119 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