AK+Userland: Remove nullability feature for the ByteBuffer type

Nobody seems to use this particular feature, in fact there were some
bugs which were uncovered by removing operator bool.

3 files changed, 3 insertions, 3 deletions

diff --git a/Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp b/Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp
index 83366ae1f7..244ba6c0cc 100644
--- a/Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp
@@ -431,7 +431,7 @@ public:
         if (type != CSS::Selector::SimpleSelector::Type::Universal) {
             while (is_valid_selector_char(peek()))
                 buffer.append(consume_one());
-            PARSE_VERIFY(!buffer.is_null());
+            PARSE_VERIFY(!buffer.is_empty());
         }
 
         auto value = String::copy(buffer);
diff --git a/Userland/Libraries/LibWeb/Loader/Resource.h b/Userland/Libraries/LibWeb/Loader/Resource.h
index 1575040ba0..1fca238e3e 100644
--- a/Userland/Libraries/LibWeb/Loader/Resource.h
+++ b/Userland/Libraries/LibWeb/Loader/Resource.h
@@ -42,7 +42,7 @@ public:
     bool is_failed() const { return m_failed; }
     const String& error() const { return m_error; }
 
-    bool has_encoded_data() const { return !m_encoded_data.is_null(); }
+    bool has_encoded_data() const { return !m_encoded_data.is_empty(); }
 
     const URL& url() const { return m_request.url(); }
     const ByteBuffer& encoded_data() const { return m_encoded_data; }
diff --git a/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp b/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp
index baa68b4727..250f22fc39 100644
--- a/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp
+++ b/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp
@@ -47,7 +47,7 @@ void XMLHttpRequest::fire_progress_event(const String& event_name, u64 transmitt
 
 String XMLHttpRequest::response_text() const
 {
-    if (m_response_object.is_null())
+    if (m_response_object.is_empty())
         return {};
     return String::copy(m_response_object);
 }