Call the Scheduler when opening the NTP.

chrome/browser/android/ntp/ntp_snippets_bridge.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/ntp_snippets_bridge.h"
 
 #include <jni.h>
 #include <utility>
 #include <vector>
 
@@ skipping 378 matching lines @@
 void NTPSnippetsBridge::OnMoreButtonClicked(JNIEnv* env,
                                             const JavaParamRef<jobject>& obj,
                                             jint j_category_id,
                                             jint position) {
   ntp_snippets::metrics::OnMoreButtonClicked(
       Category::FromIDValue(j_category_id), position);
   content_suggestions_service_->user_classifier()->OnEvent(
       ntp_snippets::UserClassifier::Metric::SUGGESTIONS_USED);
 }
 
+void NTPSnippetsBridge::OnNTPInitialized(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj) {
+  content_suggestions_service_->remote_suggestions_scheduler()->OnNTPOpened();
+}
+
 NTPSnippetsBridge::~NTPSnippetsBridge() {}
 
 void NTPSnippetsBridge::OnNewSuggestions(Category category) {
   if (observer_.is_null()) {
     return;
   }
 
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_SnippetsBridge_onNewSuggestions(env, observer_,
                                        static_cast<int>(category.id()));
@@ skipping 54 matching lines @@
   JNIEnv* env = AttachCurrentThread();
   Java_SnippetsBridge_onMoreSuggestions(
       env, observer_, category.id(),
       ToJavaSuggestionList(env, category, suggestions));
 }
 
 // static
 bool NTPSnippetsBridge::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }