Trigger the Snippets Scheduler when Resuming Activities

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 392 matching lines @@
       GetRemoteSuggestionsScheduler();
   // Can be null if the feature has been disabled but the scheduler has not been
   // unregistered yet. The next start should unregister it.
   if (!scheduler) {
     return;
   }
 
   scheduler->OnNTPOpened();
 }
 
+void NTPSnippetsBridge::OnColdStart(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj) {
+  ntp_snippets::RemoteSuggestionsScheduler* scheduler =
+      GetRemoteSuggestionsScheduler();
+  // TODO(fhorschig): Remove guard when https://crbug.com/678556 is resolved.
+  if (!scheduler) {
+    return;
+  }
+  scheduler->OnBrowserColdStart();
+}
+
+void NTPSnippetsBridge::OnActivityWarmResumed(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj) {
+  ntp_snippets::RemoteSuggestionsScheduler* scheduler =
+      GetRemoteSuggestionsScheduler();
+  // TODO(fhorschig): Remove guard when https://crbug.com/678556 is resolved.
+  if (!scheduler) {
+    return;
+  }
+  scheduler->OnBrowserForegrounded();
+}
+
 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);
 }