Add feedback source for Duet

This patch adds a feedback source for the split toolbar that
identifies whether the feature is enabled.

Change-Id: I5a1455c246e9ad5a6a2d36a452a580678fe59dd0
Reviewed-on: https://chromium-review.googlesource.com/1181575Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584781}

chrome/android/java/src/org/chromium/chrome/browser/feedback/DuetFeedbackSource.java

+// Copyright 2018 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.
+
+package org.chromium.chrome.browser.feedback;
+
+import org.chromium.chrome.browser.util.FeatureUtilities;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/** Provides whether Duet is enabled for feedback reports. */
+public class DuetFeedbackSource implements FeedbackSource {
+    private static final String DUET_KEY = "Duet";
+    private static final String ENABLED_VALUE = "Enabled";
+    private static final String DISABLED_VALUE = "Disabled";
+
+    private final HashMap<String, String> mMap;
+
+    DuetFeedbackSource() {
+        mMap = new HashMap<>(1);
+        mMap.put(DUET_KEY,
+                FeatureUtilities.isBottomToolbarEnabled() ? ENABLED_VALUE : DISABLED_VALUE);
+    }
+
+    @Override
+    public Map<String, String> getFeedback() {
+        return mMap;
+    }
+}

chrome/android/java/src/org/chromium/chrome/browser/feedback/FeedbackCollector.java

@@ -86,6 +86,7 @@ public class FeedbackCollector implements Runnable {
         sources.add(new PermissionFeedbackSource());
         sources.add(new SimplifiedNtpFeedbackSource());
         sources.add(new FeedbackContextFeedbackSource(feedbackContext));
+        sources.add(new DuetFeedbackSource());
 
         // Sanity check in case a source is added to the wrong list.
         for (FeedbackSource source : sources) {

chrome/android/java_sources.gni

@@ -564,6 +564,7 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/feedback/ConnectivityFeedbackSource.java",
   "java/src/org/chromium/chrome/browser/feedback/ConnectivityTask.java",
   "java/src/org/chromium/chrome/browser/feedback/DataReductionProxyFeedbackSource.java",
+  "java/src/org/chromium/chrome/browser/feedback/DuetFeedbackSource.java",
   "java/src/org/chromium/chrome/browser/feedback/FeedbackCollector.java",
   "java/src/org/chromium/chrome/browser/feedback/FeedbackContextFeedbackSource.java",
   "java/src/org/chromium/chrome/browser/feedback/FeedbackReporter.java",