AK+Everywhere: Rename String to DeprecatedString

We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)

Userland/Libraries/LibWeb/Layout/AvailableSpace.cpp

@@ -29,11 +29,11 @@ AvailableSize AvailableSize::make_max_content()
     return AvailableSize { Type::MaxContent, INFINITY };
 }
 
-String AvailableSize::to_string() const
+DeprecatedString AvailableSize::to_string() const
 {
     switch (m_type) {
     case Type::Definite:
-        return String::formatted("definite({})", m_value);
+        return DeprecatedString::formatted("definite({})", m_value);
     case Type::Indefinite:
         return "indefinite";
     case Type::MinContent:
@@ -44,9 +44,9 @@ String AvailableSize::to_string() const
     VERIFY_NOT_REACHED();
 }
 
-String AvailableSpace::to_string() const
+DeprecatedString AvailableSpace::to_string() const
 {
-    return String::formatted("{} x {}", width, height);
+    return DeprecatedString::formatted("{} x {}", width, height);
 }
 
 AvailableSize::AvailableSize(Type type, float value)

Userland/Libraries/LibWeb/Layout/AvailableSpace.h

@@ -6,8 +6,8 @@
 
 #pragma once
 
+#include <AK/DeprecatedString.h>
 #include <AK/Format.h>
-#include <AK/String.h>
 #include <LibWeb/Forward.h>
 
 namespace Web::Layout {
@@ -44,7 +44,7 @@ public:
         return m_value;
     }
 
-    String to_string() const;
+    DeprecatedString to_string() const;
 
 private:
     AvailableSize(Type type, float);
@@ -64,7 +64,7 @@ public:
     AvailableSize width;
     AvailableSize height;
 
-    String to_string() const;
+    DeprecatedString to_string() const;
 };
 
 }

Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp

@@ -1835,7 +1835,7 @@ float GridFormattingContext::get_free_space_y(Box const& box)
     return -1;
 }
 
-int GridFormattingContext::get_line_index_by_line_name(String const& needle, CSS::GridTrackSizeList grid_track_size_list)
+int GridFormattingContext::get_line_index_by_line_name(DeprecatedString const& needle, CSS::GridTrackSizeList grid_track_size_list)
 {
     if (grid_track_size_list.track_list().size() == 0)
         return -1;

Userland/Libraries/LibWeb/Layout/GridFormattingContext.h

@@ -69,7 +69,7 @@ private:
     float get_free_space_x(AvailableSpace const& available_space);
     float get_free_space_y(Box const&);
 
-    int get_line_index_by_line_name(String const& line_name, CSS::GridTrackSizeList);
+    int get_line_index_by_line_name(DeprecatedString const& line_name, CSS::GridTrackSizeList);
 };
 
 class OccupationGrid {

Userland/Libraries/LibWeb/Layout/ListItemMarkerBox.cpp

@@ -21,25 +21,25 @@ ListItemMarkerBox::ListItemMarkerBox(DOM::Document& document, CSS::ListStyleType
     case CSS::ListStyleType::Disc:
         break;
     case CSS::ListStyleType::Decimal:
-        m_text = String::formatted("{}.", m_index);
+        m_text = DeprecatedString::formatted("{}.", m_index);
         break;
     case CSS::ListStyleType::DecimalLeadingZero:
         // This is weird, but in accordance to spec.
-        m_text = m_index < 10 ? String::formatted("0{}.", m_index) : String::formatted("{}.", m_index);
+        m_text = m_index < 10 ? DeprecatedString::formatted("0{}.", m_index) : DeprecatedString::formatted("{}.", m_index);
         break;
     case CSS::ListStyleType::LowerAlpha:
     case CSS::ListStyleType::LowerLatin:
-        m_text = String::bijective_base_from(m_index - 1).to_lowercase();
+        m_text = DeprecatedString::bijective_base_from(m_index - 1).to_lowercase();
         break;
     case CSS::ListStyleType::UpperAlpha:
     case CSS::ListStyleType::UpperLatin:
-        m_text = String::bijective_base_from(m_index - 1);
+        m_text = DeprecatedString::bijective_base_from(m_index - 1);
         break;
     case CSS::ListStyleType::LowerRoman:
-        m_text = String::roman_number_from(m_index).to_lowercase();
+        m_text = DeprecatedString::roman_number_from(m_index).to_lowercase();
         break;
     case CSS::ListStyleType::UpperRoman:
-        m_text = String::roman_number_from(m_index);
+        m_text = DeprecatedString::roman_number_from(m_index);
         break;
     case CSS::ListStyleType::None:
         break;

Userland/Libraries/LibWeb/Layout/ListItemMarkerBox.h

@@ -18,7 +18,7 @@ public:
     explicit ListItemMarkerBox(DOM::Document&, CSS::ListStyleType, size_t index, NonnullRefPtr<CSS::StyleProperties>);
     virtual ~ListItemMarkerBox() override;
 
-    String const& text() const { return m_text; }
+    DeprecatedString const& text() const { return m_text; }
 
     virtual RefPtr<Painting::Paintable> create_paintable() const override;
 
@@ -31,7 +31,7 @@ private:
     CSS::ListStyleType m_list_style_type { CSS::ListStyleType::None };
     size_t m_index;
 
-    String m_text {};
+    DeprecatedString m_text {};
 };
 
 template<>

Userland/Libraries/LibWeb/Layout/Node.cpp

@@ -585,7 +585,7 @@ bool Node::is_root_element() const
     return is<HTML::HTMLHtmlElement>(*dom_node());
 }
 
-String Node::debug_description() const
+DeprecatedString Node::debug_description() const
 {
     StringBuilder builder;
     builder.append(class_name());

Userland/Libraries/LibWeb/Layout/Node.h

@@ -66,7 +66,7 @@ public:
 
     bool is_root_element() const;
 
-    String debug_description() const;
+    DeprecatedString debug_description() const;
 
     bool has_style() const { return m_has_style; }
 

Userland/Libraries/LibWeb/Layout/TextNode.cpp

@@ -37,7 +37,7 @@ void TextNode::compute_text_for_rendering(bool collapse)
     auto& data = dom_node().data();
 
     if (dom_node().is_password_input()) {
-        m_text_for_rendering = String::repeated('*', data.length());
+        m_text_for_rendering = DeprecatedString::repeated('*', data.length());
         return;
     }
 
@@ -49,7 +49,7 @@ void TextNode::compute_text_for_rendering(bool collapse)
     // NOTE: A couple fast returns to avoid unnecessarily allocating a StringBuilder.
     if (data.length() == 1) {
         if (is_ascii_space(data[0])) {
-            static String s_single_space_string = " ";
+            static DeprecatedString s_single_space_string = " ";
             m_text_for_rendering = s_single_space_string;
         } else {
             m_text_for_rendering = data;

Userland/Libraries/LibWeb/Layout/TextNode.h

@@ -23,7 +23,7 @@ public:
 
     const DOM::Text& dom_node() const { return static_cast<const DOM::Text&>(*Node::dom_node()); }
 
-    String const& text_for_rendering() const { return m_text_for_rendering; }
+    DeprecatedString const& text_for_rendering() const { return m_text_for_rendering; }
 
     struct Chunk {
         Utf8View view;
@@ -55,7 +55,7 @@ public:
 private:
     virtual bool is_text_node() const final { return true; }
 
-    String m_text_for_rendering;
+    DeprecatedString m_text_for_rendering;
 };
 
 template<>