bluetooth: Use BluetoothUUID instead of string when sending uuids

third_party/WebKit/public/blink.gyp

Index: third_party/WebKit/public/blink.gyp
diff --git a/third_party/WebKit/public/blink.gyp b/third_party/WebKit/public/blink.gyp
index e7522352a2668346bc54d51160a547783d1a6a13..598120a96f5ad65053e99fe8482a642b13906180 100644
--- a/third_party/WebKit/public/blink.gyp
+++ b/third_party/WebKit/public/blink.gyp
@@ -126,6 +126,9 @@
                     '<@(blink_mojo_sources)',
                     '<@(blink_android_mojo_sources)',
                 ],
+                'mojom_typemaps': [
+                  '../../../device/bluetooth/public/interfaces/bluetooth_uuid.typemap',
+                ],
             },
             'includes': [
                 '../../../mojo/mojom_bindings_generator_explicit.gypi',
@@ -139,6 +142,7 @@
                 'mojo_bindings_blink_mojom',
                 'mojo_bindings_mojom',
                 '../../../mojo/mojo_public.gyp:mojo_cpp_bindings',
+                '../../../device/bluetooth/bluetooth.gyp:bluetooth_mojom',
             ],
         },
     ],