Make dynamic partition control android return a writable fd

We can return a FileDescriptor object, which encapsulates logic needed
to write to a COW. This way, filesystem verfication action can use the
turend value directly for computing verity and hash the partition.

Test: th
Change-Id: Iafe9699ef0cc15961641fc94f8ad2820230a56e1

1 files changed, 3 insertions, 3 deletions

diff --git a/aosp/dynamic_partition_control_android.h b/aosp/dynamic_partition_control_android.h
index 4e75a9b9..c506ac97 100644
--- a/aosp/dynamic_partition_control_android.h
+++ b/aosp/dynamic_partition_control_android.h
@@ -104,9 +104,9 @@ class DynamicPartitionControlAndroid : public DynamicPartitionControlInterface {
       const std::string& unsuffixed_partition_name,
       const std::optional<std::string>& source_path,
       bool is_append) override;
-  FileDescriptorPtr OpenCowReader(const std::string& unsuffixed_partition_name,
-                                  const std::optional<std::string>&,
-                                  bool is_append = false) override;
+  FileDescriptorPtr OpenCowFd(const std::string& unsuffixed_partition_name,
+                              const std::optional<std::string>&,
+                              bool is_append = false) override;
 
   bool UnmapAllPartitions() override;