IPH - Added triggers to show Download Home message

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java
index 45fb196f55901f7c88f2098789f27e38c97f42e4..1c1ba7f19ca5ad5740e959da048b247a3ad1481a 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java
@@ -43,6 +43,7 @@ import org.chromium.chrome.browser.feature_engagement_tracker.FeatureEngagementT
 import org.chromium.chrome.browser.offlinepages.DownloadUiActionFlags;
 import org.chromium.chrome.browser.offlinepages.OfflinePageBridge;
 import org.chromium.chrome.browser.offlinepages.downloads.OfflinePageDownloadBridge;
+import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
 import org.chromium.chrome.browser.tabmodel.document.TabDelegate;
@@ -152,6 +153,11 @@ public class DownloadUtils {
             }
         }
 
+        Profile profile = (tab == null ? Profile.getLastUsedProfile() : tab.getProfile());
+        FeatureEngagementTracker tracker =
+                FeatureEngagementTrackerFactory.getFeatureEngagementTrackerForProfile(profile);
+        tracker.notifyEvent(EventConstants.DOWNLOAD_HOME_OPENED);
+
         return true;
     }