Add method IsPassphraseRequiredForDecryption to ProfileSyncService

chrome/browser/sync/profile_sync_service.h

Index: chrome/browser/sync/profile_sync_service.h
diff --git a/chrome/browser/sync/profile_sync_service.h b/chrome/browser/sync/profile_sync_service.h
index a0e1cb89e3f2917a031115bc9ecaf051d9e0dd87..e343b1288ae3e65d8e9c237134364fb5bf621557 100644
--- a/chrome/browser/sync/profile_sync_service.h
+++ b/chrome/browser/sync/profile_sync_service.h
@@ -283,11 +283,17 @@ class ProfileSyncService : public browser_sync::SyncFrontend,
   }
 
   // Returns true if OnPassphraseRequired has been called for any reason.
-  bool ObservedPassphraseRequired() const {
+  bool IsPassphraseRequired() const {
     return passphrase_required_reason_ !=
         sync_api::REASON_PASSPHRASE_NOT_REQUIRED;
   }
 
+  // Returns true if OnPassphraseRequired has been called for decryption.
+  bool IsPassphraseRequiredForDecryption() const {
+    return (passphrase_required_reason_ == sync_api::REASON_DECRYPTION ||
+        passphrase_required_reason_ == sync_api::REASON_SET_PASSPHRASE_FAILED);
+  }
+
   sync_api::PassphraseRequiredReason passphrase_required_reason() const {
     return passphrase_required_reason_;
   }