[Webview, Child Accounts] Automatically sign in to Chrome if needed.

components/supervised_user_error_page/supervised_user_error_page.h

Index: components/supervised_user_error_page/supervised_user_error_page.h
diff --git a/components/supervised_user_error_page/supervised_user_error_page.h b/components/supervised_user_error_page/supervised_user_error_page.h
index 01ca3e219511c1469e649b0a4549c05266d411dd..f8ee24917bb369b6d52558e7e49f89095d12f74a 100644
--- a/components/supervised_user_error_page/supervised_user_error_page.h
+++ b/components/supervised_user_error_page/supervised_user_error_page.h
@@ -9,12 +9,16 @@
 
 namespace supervised_user_error_page {
 
+// Note: values need to be explicit, since NOT_SIGNED_IN is also
+// detected in Java (SupervisedUserContentProvider.java) and the value
+// needs to match.

[Bernhard Bauer, 2017/02/15 15:09:38]

We can actually create a Java enum (well, @IntDef) from the C++ one.

[aberent, 2017/02/15 18:34:46]

Done.

 enum FilteringBehaviorReason {
-  DEFAULT,
-  ASYNC_CHECKER,
-  BLACKLIST,
-  MANUAL,
-  WHITELIST
+  DEFAULT = 0,
+  ASYNC_CHECKER = 1,
+  BLACKLIST = 2,
+  MANUAL = 3,
+  WHITELIST = 4,
+  NOT_SIGNED_IN = 5,
 };
 
 int GetBlockMessageID(