Call the Scheduler when opening the NTP.

chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java
index a3cbb6d98b4508004673a4fd8c2241afae37e8a3..bf4793979300c81a62b7f4891081481b96b012e2 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsBridge.java
@@ -169,6 +169,14 @@ public class SnippetsBridge implements SuggestionsSource {
         nativeOnMoreButtonClicked(mNativeSnippetsBridge, category, position);
     }
 
+    /**
+     * Notifies the scheduler to adjust the plan due to a newly opened NTP.
+     */
+    public void onNTPOpened() {

[Michael van Ouwerkerk, 2016/12/22 11:38:33]

Maybe onNTPInitialized, if we wait for initialization?

[fhorschig, 2016/12/22 12:26:50]

Done.

+        assert mNativeSnippetsBridge != 0;
+        nativeOnNTPOpened(mNativeSnippetsBridge);
+    }
+
     public static void onSuggestionTargetVisited(int category, long visitTimeMs) {
         nativeOnSuggestionTargetVisited(category, visitTimeMs);
     }