📰 Record user actions on the NTP and Home sheet

chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsMetrics.java

Index: chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsMetrics.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsMetrics.java b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsMetrics.java
new file mode 100644
index 0000000000000000000000000000000000000000..fa64959c56832b0d46598f9a1f39b8dec2155b08
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsMetrics.java
@@ -0,0 +1,46 @@
+// Copyright 2017 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.suggestions;
+
+import org.chromium.base.metrics.RecordUserAction;
+
+/**
+ * Exposes methods to report suggestions related events, for UMA or Fetch scheduling purposes.
+ */
+public abstract class SuggestionsMetrics {
+    private SuggestionsMetrics() {}
+
+    // UI Element interactions
+
+    public static void recordSurfaceVisible() {
+        RecordUserAction.record("Suggestions.SurfaceVisible");
+    }
+
+    public static void recordSurfaceHidden() {
+        RecordUserAction.record("Suggestions.SurfaceHidden");
+    }
+
+    public static void recordTileTapped() {
+        RecordUserAction.record("Suggestions.Tile.Tapped");
+    }
+
+    public static void recordCardTapped() {
+        RecordUserAction.record("Suggestions.Card.Tapped");
+    }
+
+    public static void recordCardActionTapped() {
+        RecordUserAction.record("Suggestions.Card.ActionTapped");
+    }
+
+    public static void recordCardSwipedAway() {
+        RecordUserAction.record("Suggestions.Card.SwipedAway");
+    }
+
+    // Effect/Purpose of the interactions. Most are recorded in |content_suggestions_metrics.h|
+
+    public static void recordActionViewAll() {
+        RecordUserAction.record("Suggestions.Category.ViewAll");
+    }
+}