Chromium side of RequestDeviceOptions implementation.

device/bluetooth/bluetooth_uuid.cc

Index: device/bluetooth/bluetooth_uuid.cc
diff --git a/device/bluetooth/bluetooth_uuid.cc b/device/bluetooth/bluetooth_uuid.cc
index 714d1c5c3409ddffbe8357926e2c131fed1cff18..792515a1e69ca1e43c2371076b5b00192647b70e 100644
--- a/device/bluetooth/bluetooth_uuid.cc
+++ b/device/bluetooth/bluetooth_uuid.cc
@@ -7,6 +7,7 @@
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
+#include "ipc/ipc_message.h"
 
 namespace device {
 
@@ -93,3 +94,27 @@ void PrintTo(const BluetoothUUID& uuid, std::ostream* out) {
 }
 
 }  // namespace device
+
+void IPC::ParamTraits<device::BluetoothUUID>::Write(Message* m,
+                                                    const param_type& p) {
+  m->WriteString(p.canonical_value());
+}
+
+bool IPC::ParamTraits<device::BluetoothUUID>::Read(const Message* m,
+                                                   base::PickleIterator* iter,
+                                                   param_type* r) {
+  std::string value;
+  if (!iter->ReadString(&value))
+    return false;
+  *r = device::BluetoothUUID(value);
+  // If the format isn't 128-bit, .value() would return a different answer than
+  // .canonical_value(). Then if browser-side code accidentally checks .value()
+  // against a 128-bit string literal, a hostile renderer could use the 16- or
+  // 32-bit format and evade the check.
+  return r->format() == device::BluetoothUUID::kFormat128Bit;

[Jeffrey Yasskin, 2015/06/15 23:48:23]

Tom, is this the right way to validate IPCs that are supposed to have a
particular format? When I force an invalid UUID across the wire, this appears to
cause the browser to hit
https://code.google.com/p/chromium/codesearch/#chromium/src/ipc/ipc_message_u...
instead of killing the renderer, which is a little sad.

+}
+
+void IPC::ParamTraits<device::BluetoothUUID>::Log(const param_type& p,
+                                                  std::string* l) {
+  l->append(p.canonical_value());
+}