Expose the Site Engagement Service to Java.

chrome/android/java_sources.gni

Index: chrome/android/java_sources.gni
diff --git a/chrome/android/java_sources.gni b/chrome/android/java_sources.gni
index f32de15eaf43174c191a155e5c50ca9fd9e60722..6e50ff7a57b8d4d069d0355db907b834cf75f6d3 100644
--- a/chrome/android/java_sources.gni
+++ b/chrome/android/java_sources.gni
@@ -341,6 +341,7 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/download/ui/SpaceDisplay.java",
   "java/src/org/chromium/chrome/browser/download/ui/ThumbnailProvider.java",
   "java/src/org/chromium/chrome/browser/download/ui/ThumbnailProviderImpl.java",
+  "java/src/org/chromium/chrome/browser/engagement/SiteEngagementService.java",
   "java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java",
   "java/src/org/chromium/chrome/browser/externalauth/UserRecoverableErrorHandler.java",
   "java/src/org/chromium/chrome/browser/externalauth/VerifiedHandler.java",
@@ -1231,6 +1232,7 @@ chrome_test_java_sources = [
   "javatests/src/org/chromium/chrome/browser/download/SystemDownloadNotifierTest.java",
   "javatests/src/org/chromium/chrome/browser/download/ui/DownloadHistoryAdapterTest.java",
   "javatests/src/org/chromium/chrome/browser/download/ui/StubbedProvider.java",
+  "javatests/src/org/chromium/chrome/browser/engagement/SiteEngagementServiceTest.java",
   "javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImplTest.java",
   "javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java",
   "javatests/src/org/chromium/chrome/browser/externalnav/IntentWithGesturesHandlerTest.java",