PNaCl: Use Chrome IPC to talk to the linker process, instead of SRPC

components/nacl/renderer/plugin/temporary_file.h

Index: components/nacl/renderer/plugin/temporary_file.h
diff --git a/components/nacl/renderer/plugin/temporary_file.h b/components/nacl/renderer/plugin/temporary_file.h
index d87f42cf69292b039d4e6f9a0c48d3c480b38e48..14dd1af4cbd9a7ddcb166070d5f4161dd194d19f 100644
--- a/components/nacl/renderer/plugin/temporary_file.h
+++ b/components/nacl/renderer/plugin/temporary_file.h
@@ -58,6 +58,11 @@ class TempFile {
   // valid after TakeFileHandle() is called.
   PP_FileHandle TakeFileHandle();
 
+  // Returns a handle to the file, without transferring ownership of it.
+  // This handle remains valid until the TempFile object is destroyed or
+  // TakeFileHandle() is called.
+  PP_FileHandle GetFileHandle();
+
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(TempFile);