Sync the launch type pref for apps.

chrome/browser/extensions/app_sync_data.h

Index: chrome/browser/extensions/app_sync_data.h
diff --git a/chrome/browser/extensions/app_sync_data.h b/chrome/browser/extensions/app_sync_data.h
index 0d2c67fd362956fc10f7086c73c79fe5cec73158..60e36a844e0aeb9ec544a6d17eb1971d8cb5013c 100644
--- a/chrome/browser/extensions/app_sync_data.h
+++ b/chrome/browser/extensions/app_sync_data.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_
 
 #include "chrome/browser/extensions/extension_sync_data.h"
+#include "chrome/common/extensions/extension_constants.h"
 #include "sync/api/string_ordinal.h"
 #include "sync/api/sync_change.h"
 
@@ -32,7 +33,8 @@ class AppSyncData {
               bool enabled,
               bool incognito_enabled,
               const syncer::StringOrdinal& app_launch_ordinal,
-              const syncer::StringOrdinal& page_ordinal);
+              const syncer::StringOrdinal& page_ordinal,
+              extensions::LaunchType launch_type);
   ~AppSyncData();
 
   // Retrive sync data from this class.
@@ -55,6 +57,10 @@ class AppSyncData {
     return extension_sync_data_;
   }
 
+  const extensions::LaunchType launch_type() const {
+    return launch_type_;
+  }
+
  private:
   // Convert an AppSyncData back out to a sync structure.
   void PopulateAppSpecifics(sync_pb::AppSpecifics* specifics) const;
@@ -67,6 +73,7 @@ class AppSyncData {
   ExtensionSyncData extension_sync_data_;
   syncer::StringOrdinal app_launch_ordinal_;
   syncer::StringOrdinal page_ordinal_;
+  extensions::LaunchType launch_type_;
 };
 
 }  // namespace extensions