drive: Change DriveServiceInterface::GetChangeList's callback type to ChangeListCallback

google_apis/drive/drive_api_parser.h

Index: google_apis/drive/drive_api_parser.h
diff --git a/google_apis/drive/drive_api_parser.h b/google_apis/drive/drive_api_parser.h
index 2700dbc2dd94391b8b58fe00bd34c1218ce11ff2..babb4cdc5c16aa737548cca079e136ee146d6905 100644
--- a/google_apis/drive/drive_api_parser.h
+++ b/google_apis/drive/drive_api_parser.h
@@ -601,13 +601,11 @@ class FileList {
 
   // Returns a set of files in this list.
   const ScopedVector<FileResource>& items() const { return items_; }
+  ScopedVector<FileResource>* mutable_items() { return &items_; }
 
   void set_next_link(const GURL& next_link) {
     next_link_ = next_link;
   }
-  void set_items(ScopedVector<FileResource> items) {
-    items_ = items.Pass();
-  }
 
  private:
   friend class DriveAPIParserTest;
@@ -715,6 +713,7 @@ class ChangeList {
 
   // Returns a set of changes in this list.
   const ScopedVector<ChangeResource>& items() const { return items_; }
+  ScopedVector<ChangeResource>* mutable_items() { return &items_; }
 
   void set_next_link(const GURL& next_link) {
     next_link_ = next_link;
@@ -722,9 +721,6 @@ class ChangeList {
   void set_largest_change_id(int64 largest_change_id) {
     largest_change_id_ = largest_change_id;
   }
-  void set_items(ScopedVector<ChangeResource> items) {
-    items_ = items.Pass();
-  }
 
  private:
   friend class DriveAPIParserTest;