sync: Add GetAllSyncData to sync/api

chrome/browser/sync/glue/fake_generic_change_processor.h

Index: chrome/browser/sync/glue/fake_generic_change_processor.h
diff --git a/chrome/browser/sync/glue/fake_generic_change_processor.h b/chrome/browser/sync/glue/fake_generic_change_processor.h
index 36285b94c4295724d70b653d2bb19f29bdeb6068..4d75da3ea98c6ce314a82cab1f9859ff6ddefe8a 100644
--- a/chrome/browser/sync/glue/fake_generic_change_processor.h
+++ b/chrome/browser/sync/glue/fake_generic_change_processor.h
@@ -30,7 +30,7 @@ class FakeGenericChangeProcessor : public GenericChangeProcessor {
       const syncer::SyncChangeList& change_list) OVERRIDE;
   virtual syncer::SyncError GetSyncDataForType(
       syncer::ModelType type,
-      syncer::SyncDataList* current_sync_data) OVERRIDE;
+      syncer::SyncDataList* current_sync_data) const OVERRIDE;
   virtual int GetSyncCountForType(syncer::ModelType type) OVERRIDE;
   virtual bool SyncModelHasUserCreatedNodes(syncer::ModelType type,
                                             bool* has_nodes) OVERRIDE;
@@ -42,7 +42,6 @@ class FakeGenericChangeProcessor : public GenericChangeProcessor {
   bool sync_model_has_user_created_nodes_;
   bool sync_model_has_user_created_nodes_success_;
   bool crypto_ready_if_necessary_;
-  syncer::ModelType type_;
 };
 
 }  // namespace browser_sync