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 12a214cebb5fd488c7d278ee5e51729cfc45fb1d..e825fb663c364b21cb01e47d69ae3de56aaa666c 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,