Add UMA metrics for Bookmark widgets.

chrome/android/BUILD.gn

Index: chrome/android/BUILD.gn
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
index cd88626c5a873a15be3a13e5324521758d1d14e1..c3d27dad27549561daea51bf98e46a181d0c6980 100644
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -172,6 +172,7 @@ android_library("chrome_java") {
 
 # GYP: //chrome/chrome_browser.gypi:activity_type_ids_java
 # GYP: //chrome/chrome_browser.gypi:connectivity_check_result_java
+# GYP: //chrome/chrome_browser.gypi:shortcut_source_java
 # GYP: //chrome/chrome_browser.gypi:profile_account_management_metrics_java
 # GYP: //chrome/chrome_browser.gypi:profile_sync_service_model_type_selection_java
 # GYP: //chrome/chrome_browser.gypi:connection_security_security_levels_java
@@ -180,6 +181,7 @@ java_cpp_enum("chrome_android_java_enums_srcjar") {
   sources = [
     "//chrome/browser/android/activity_type_ids.h",
     "//chrome/browser/android/feedback/connectivity_checker.cc",
+    "//chrome/browser/android/shortcut_info.h",
     "//chrome/browser/android/tab_android.h",
     "//chrome/browser/profiles/profile_metrics.h",
     "//chrome/browser/ssl/connection_security.h",
@@ -188,6 +190,7 @@ java_cpp_enum("chrome_android_java_enums_srcjar") {
   outputs = [
     "org/chromium/chrome/browser/ActivityTypeIds.java",
     "org/chromium/chrome/browser/feedback/ConnectivityCheckResult.java",
+    "org/chromium/chrome/browser/ShortcutSource.java",
     "org/chromium/chrome/browser/TabLoadStatus.java",
     "org/chromium/chrome/browser/profiles/ProfileAccountManagementMetrics.java",
     "org/chromium/chrome/browser/ssl/ConnectionSecurityLevel.java",