bluetooth: browser-side implementation of writeValue.

content/child/bluetooth/web_bluetooth_impl.h

Index: content/child/bluetooth/web_bluetooth_impl.h
diff --git a/content/child/bluetooth/web_bluetooth_impl.h b/content/child/bluetooth/web_bluetooth_impl.h
index 0a78df2d13cc4ccc46872dc1c06cafb8756e29a2..22772d1f6f4527211c2231802273c4a384fe4304 100644
--- a/content/child/bluetooth/web_bluetooth_impl.h
+++ b/content/child/bluetooth/web_bluetooth_impl.h
@@ -41,6 +41,10 @@ class CONTENT_EXPORT WebBluetoothImpl
       blink::WebBluetoothGetCharacteristicCallbacks* callbacks) override;
   void readValue(const blink::WebString& characteristic_instance_id,
                  blink::WebBluetoothReadValueCallbacks* callbacks) override;
+  void writeValue(const blink::WebString& characteristic_instance_id,
+                  const unsigned char* bytes,
+                  unsigned byteLength,
+                  blink::WebBluetoothWriteValueCallbacks*) override;
 
  private:
   BluetoothDispatcher* GetDispatcher();