Represent BINARY properties using std::string instead of BinaryValue,

chrome/browser/extensions/api/serial/serial_api.cc

Index: chrome/browser/extensions/api/serial/serial_api.cc
diff --git a/chrome/browser/extensions/api/serial/serial_api.cc b/chrome/browser/extensions/api/serial/serial_api.cc
index 77d4c51b61b8c36a1e4e69ed5ced204694b0b0c3..ef6833137c3d0410fad34b9aec365b2d29a8e23e 100644
--- a/chrome/browser/extensions/api/serial/serial_api.cc
+++ b/chrome/browser/extensions/api/serial/serial_api.cc
@@ -215,8 +215,8 @@ bool SerialWriteFunction::Prepare() {
   params_ = api::experimental_serial::Write::Params::Create(*args_);
   EXTENSION_FUNCTION_VALIDATE(params_.get());
 
-  io_buffer_size_ = params_->data->GetSize();
-  io_buffer_ = new net::WrappedIOBuffer(params_->data->GetBuffer());
+  io_buffer_size_ = params_->data.size();
+  io_buffer_ = new net::WrappedIOBuffer(params_->data.data());
 
   return true;
 }