sync: Add GetAllSyncData to sync/api

chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc

Index: chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc
diff --git a/chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc b/chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc
index 74a274595a94a9b71ce7e820450c0cb19b77c729..0be9264e30bd0366bcd4b83416871fa72a16ade7 100644
--- a/chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc
+++ b/chrome/browser/webdata/autofill_profile_syncable_service_unittest.cc
@@ -99,6 +99,8 @@ class MockSyncChangeProcessor : public syncer::SyncChangeProcessor {
   MOCK_METHOD2(ProcessSyncChanges,
                syncer::SyncError(const tracked_objects::Location&,
                                  const syncer::SyncChangeList&));
+  MOCK_CONST_METHOD1(GetAllSyncData,
+                     syncer::SyncDataList(syncer::ModelType type));
 };
 
 class TestSyncChangeProcessor : public syncer::SyncChangeProcessor {
@@ -113,6 +115,10 @@ class TestSyncChangeProcessor : public syncer::SyncChangeProcessor {
     return syncer::SyncError();
   }
 
+  virtual syncer::SyncDataList GetAllSyncData(syncer::ModelType type) const {
+    return syncer::SyncDataList();
+  }
+
   const syncer::SyncChangeList& changes() { return changes_; }
 
  private: