Implementation of newly designed sign in related histograms for Android

components/signin/core/browser/signin_metrics.h

Index: components/signin/core/browser/signin_metrics.h
diff --git a/components/signin/core/browser/signin_metrics.h b/components/signin/core/browser/signin_metrics.h
index 762fd375f5be033663e1dc10601aff23da1236d1..420916a864ff9737caf5568abbd4197bab78f251 100644
--- a/components/signin/core/browser/signin_metrics.h
+++ b/components/signin/core/browser/signin_metrics.h
@@ -115,6 +115,9 @@ enum Source {
 // initiated. Not all of them exist on all platforms. They are used with
 // "Signin.SigninStartedAccessPoint" and "Signin.SigninCompletedAccessPoint"
 // histograms.
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.chrome.browser.signin
+// GENERATED_JAVA_CLASS_NAME_OVERRIDE: SigninAccessPoint
 enum class AccessPoint : int {
   ACCESS_POINT_START_PAGE = 0,
   ACCESS_POINT_NTP_LINK,
@@ -138,6 +141,9 @@ enum class AccessPoint : int {
 };
 
 // Enum values which enumerates all reasons to start sign in process.
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.chrome.browser.signin
+// GENERATED_JAVA_CLASS_NAME_OVERRIDE: SigninReason
 enum class Reason : int {
   REASON_SIGNIN_PRIMARY_ACCOUNT = 0,
   REASON_ADD_SECONDARY_ACCOUNT,