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..6f12a84d11b09419226190186466d4b84c0ca782 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& file_read_cb);

[ddorwin, 2014/09/12 05:44:29]

Comment that the CB takes a parameter that is the number of bytes?

[xhwang, 2014/09/12 17:48:45]

Done.

 
   // 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 the size of the file after a succeessful read.
+  pp::CompletionCallback file_read_cb_;
+
   DISALLOW_COPY_AND_ASSIGN(CdmFileIOImpl);
 };