📰 The Status card reports disabled sync states

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsConfig.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsConfig.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsConfig.java
index 4397a92ca3a3fba67080d6fa70e44cb9d4152356..9db06a8ac338841b3bc876a4fa5108386fb5eee6 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsConfig.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetsConfig.java
@@ -4,13 +4,36 @@
 
 package org.chromium.chrome.browser.ntp.snippets;
 
+import android.support.annotation.IntDef;
+
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
 /**
  * Provides configuration details for NTP snippets.
  */
 public final class SnippetsConfig {
+    /**
+     * Possible return values from {@code NTPSnippetsBridge::GetDisabledReason}
+     * @see SnippetsBridge#getDisabledReason()
+     */
+    @IntDef({DISABLED_REASON_NONE, DISABLED_REASON_EXPLICITLY_DISABLED,

[Bernhard Bauer, 2016/06/14 12:10:40]

Ideally, we'd generate these from the C++ values. I think +peconn was at some
point looking into adding @IntDef to the generated Java?

[dgn, 2016/06/15 16:46:29]

Done.

+            DISABLED_REASON_HISTORY_SYNC_DISABLED, DISABLED_REASON_HISTORY_SYNC_STATE_UNKNOWN})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface DisabledReason {}
+
+    /** Snippets are enabled. */
+    public static final int DISABLED_REASON_NONE = 0;
+    /** Snippets have been disabled as part of the service configuration. */
+    public static final int DISABLED_REASON_EXPLICITLY_DISABLED = 1;
+    /** History sync is not enabled, and the service requires it to be enabled. */
+    public static final int DISABLED_REASON_HISTORY_SYNC_DISABLED = 2;
+    /** The sync service is not completely initialized, and the status is unknown. */
+    public static final int DISABLED_REASON_HISTORY_SYNC_STATE_UNKNOWN = 3;
+
     private SnippetsConfig() {}
 
     public static boolean isEnabled() {