2 files changed, 23 insertions, 0 deletions
diff --git a/ppapi/shared_impl/file_growth.cc b/ppapi/shared_impl/file_growth.cc
index 002bd0f..ac97506 100644
--- a/ppapi/shared_impl/file_growth.cc
+++ b/ppapi/shared_impl/file_growth.cc
@@ -21,4 +21,22 @@ FileGrowth::FileGrowth(int64_t max_written_offset,
   DCHECK_LE(0, append_mode_write_amount);
 }
 
+FileGrowthMap FileSizeMapToFileGrowthMapForTesting(
+    const FileSizeMap& file_sizes) {
+  FileGrowthMap file_growths;
+  for (FileSizeMap::const_iterator it = file_sizes.begin();
+       it != file_sizes.end(); ++it)
+    file_growths[it->first] = FileGrowth(it->second, 0);
+  return file_growths;
+}
+
+FileSizeMap FileGrowthMapToFileSizeMapForTesting(
+    const FileGrowthMap& file_growths) {
+  FileSizeMap file_sizes;
+  for (FileGrowthMap::const_iterator it = file_growths.begin();
+       it != file_growths.end(); ++it)
+    file_sizes[it->first] = it->second.max_written_offset;
+  return file_sizes;
+}
+
 }  // namespace ppapi
diff --git a/ppapi/shared_impl/file_growth.h b/ppapi/shared_impl/file_growth.h
index b9e83ec..23f12e0 100644
--- a/ppapi/shared_impl/file_growth.h
+++ b/ppapi/shared_impl/file_growth.h
@@ -23,6 +23,11 @@ struct PPAPI_SHARED_EXPORT FileGrowth {
 typedef std::map<int32_t, FileGrowth> FileGrowthMap;
 typedef std::map<int32_t, int64_t> FileSizeMap;
 
+PPAPI_SHARED_EXPORT FileGrowthMap FileSizeMapToFileGrowthMapForTesting(
+    const FileSizeMap& file_sizes);
+PPAPI_SHARED_EXPORT FileSizeMap FileGrowthMapToFileSizeMapForTesting(
+    const FileGrowthMap& file_growths);
+
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_FILE_GROWTH_H_