[NTP Snippets] Fetcher: remove |overwrite| param

chrome/browser/android/ntp_snippets_controller.cc

 // Copyright 2016 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/android/ntp_snippets_controller.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
 #include "chrome/browser/ntp_snippets/ntp_snippets_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_android.h"
 #include "components/ntp_snippets/ntp_snippets_service.h"
 #include "jni/SnippetsController_jni.h"
 
 using base::android::JavaParamRef;
 
 static void FetchSnippets(JNIEnv* env,
                           const JavaParamRef<jobject>& obj,
-                          const JavaParamRef<jobject>& jprofile,
-                          jboolean overwrite) {
+                          const JavaParamRef<jobject>& jprofile) {
   Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
   if (profile) {
     ntp_snippets::NTPSnippetsService* ntp_snippets_service =
         NTPSnippetsServiceFactory::GetForProfile(profile);
-    ntp_snippets_service->FetchSnippets(overwrite);
+    ntp_snippets_service->FetchSnippets();
   }
 }
 
 // static
 bool NTPSnippetsController::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }