Sync bookmark app icon urls and sizes, and download icons for new apps.

sync/protocol/proto_value_conversions.h

Index: sync/protocol/proto_value_conversions.h
diff --git a/sync/protocol/proto_value_conversions.h b/sync/protocol/proto_value_conversions.h
index 02d7314a80ac20a0b8342e2565b3212ba13a194d..8aa02adda1348b84ab2f3adde9944ed95e0b7a75 100644
--- a/sync/protocol/proto_value_conversions.h
+++ b/sync/protocol/proto_value_conversions.h
@@ -46,6 +46,7 @@ class FaviconTrackingSpecifics;
 class GlobalIdDirective;
 class HistoryDeleteDirectiveSpecifics;
 class KeystoreEncryptionFlagsSpecifics;
+class LinkedAppIconInfo;
 class Media;
 class ManagedUserSettingSpecifics;
 class ManagedUserSharedSettingSpecifics;
@@ -99,10 +100,13 @@ SYNC_EXPORT_PRIVATE base::DictionaryValue* EncryptedDataToValue(
 SYNC_EXPORT_PRIVATE base::DictionaryValue* AppListSpecificsToValue(
     const sync_pb::AppListSpecifics& proto);
 
-// Sub-protocol of AppSpecifics.
+// Sub-protocols of AppSpecifics.
 SYNC_EXPORT_PRIVATE base::DictionaryValue* AppSettingsToValue(
     const sync_pb::AppNotificationSettings& app_notification_settings);
 
+SYNC_EXPORT_PRIVATE base::DictionaryValue* LinkedAppIconInfoToValue(
+    const sync_pb::LinkedAppIconInfo& linked_app_icon_info);
+
 // Sub-protocols of SessionSpecifics.
 
 SYNC_EXPORT_PRIVATE base::DictionaryValue* SessionHeaderToValue(