CdmAdapter: Report size of the file read by CDM via FileIO.

media/cdm/ppapi/cdm_file_io_impl.h

Index: media/cdm/ppapi/cdm_file_io_impl.h
diff --git a/media/cdm/ppapi/cdm_file_io_impl.h b/media/cdm/ppapi/cdm_file_io_impl.h
index aecb1e44e9a9f01c3ac72ba79864e80144ff3de2..b62b038c5b3eb2fdfdcc0d597cee4f77873971f0 100644
--- a/media/cdm/ppapi/cdm_file_io_impl.h
+++ b/media/cdm/ppapi/cdm_file_io_impl.h
@@ -35,7 +35,9 @@ class CdmFileIOImpl : public cdm::FileIO {
     DISALLOW_COPY_AND_ASSIGN(ResourceTracker);
   };
 
-  CdmFileIOImpl(cdm::FileIOClient* client, PP_Instance pp_instance);
+  CdmFileIOImpl(cdm::FileIOClient* client,
+                PP_Instance pp_instance,
+                const pp::CompletionCallback& last_read_file_size_kb_cb);

[ddorwin, 2014/09/12 02:26:28]

s/kb/bytes/ - the value passed is bytes - this code doesn't care how it's being
reported.
Actually, it doesn't really matter that it's last read either.
read_complete_cb? With a comment that that the value passed is the number of
bytes read.

[xhwang, 2014/09/12 04:30:12]

I renamed all other places but forgot this one. Renamed to file_read_cb.

 
   // cdm::FileIO implementation.
   virtual void Open(const char* file_name, uint32_t file_name_size) OVERRIDE;
@@ -162,6 +164,9 @@ class CdmFileIOImpl : public cdm::FileIO {
   // when read completes.
   std::vector<char> cumulative_read_buffer_;
 
+  // Callback to report size of the last read file.
+  pp::CompletionCallback file_read_cb_;
+
   DISALLOW_COPY_AND_ASSIGN(CdmFileIOImpl);
 };