LibWeb: Deduplicate the WebGL null_terminated_string helper

Author: https://github.com/cqundefine
Commit: df1aeda955
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6676
Reviewed-by: https://github.com/kalenikaliaksandr ✅
Reviewed-by: https://github.com/konradekk

Libraries/LibWeb/WebGL/Types.h

@@ -16,6 +16,7 @@ using GLuint = unsigned int;
 using GLint = int;
 using GLsizei = int;
 using GLintptr = long long;
+using GLchar = char;
 
 // FIXME: This should really be "struct __GLsync*", but the linker doesn't recognise it.
 //        Since this conflicts with the original definition of GLsync, the suffix "Internal" has been added.

Libraries/LibWeb/WebGL/WebGL2RenderingContextImpl.cpp

@@ -37,15 +37,6 @@ extern "C" {
 
 namespace Web::WebGL {
 
-static Vector<GLchar> null_terminated_string(StringView string)
-{
-    Vector<GLchar> result;
-    for (auto c : string.bytes())
-        result.append(c);
-    result.append('\0');
-    return result;
-}
-
 WebGL2RenderingContextImpl::WebGL2RenderingContextImpl(JS::Realm& realm, NonnullOwnPtr<OpenGLContext> context)
     : m_realm(realm)
     , m_context(move(context))

Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h

@@ -9,6 +9,7 @@
 #include <LibJS/Runtime/DataView.h>
 #include <LibJS/Runtime/TypedArray.h>
 #include <LibWeb/Forward.h>
+#include <LibWeb/WebGL/Types.h>
 #include <LibWeb/WebIDL/Buffers.h>
 #include <LibWeb/WebIDL/Types.h>
 
@@ -127,6 +128,16 @@ public:
     Optional<ConvertedTexture> read_and_pixel_convert_texture_image_source(TexImageSource const& source, WebIDL::UnsignedLong format, WebIDL::UnsignedLong type, Optional<int> destination_width = OptionalNone {}, Optional<int> destination_height = OptionalNone {});
 
 protected:
+    static Vector<GLchar> null_terminated_string(StringView string)
+    {
+        Vector<GLchar> result;
+        result.ensure_capacity(string.length() + 1);
+        for (auto c : string.bytes())
+            result.append(c);
+        result.append('\0');
+        return result;
+    }
+
     // UNPACK_FLIP_Y_WEBGL of type boolean
     //      If set, then during any subsequent calls to texImage2D or texSubImage2D, the source data is flipped along
     //      the vertical axis, so that conceptually the last row is the first one transferred. The initial value is false.

Libraries/LibWeb/WebGL/WebGLRenderingContextImpl.cpp

@@ -33,15 +33,6 @@ extern "C" {
 
 namespace Web::WebGL {
 
-static Vector<GLchar> null_terminated_string(StringView string)
-{
-    Vector<GLchar> result;
-    for (auto c : string.bytes())
-        result.append(c);
-    result.append('\0');
-    return result;
-}
-
 WebGLRenderingContextImpl::WebGLRenderingContextImpl(JS::Realm& realm, NonnullOwnPtr<OpenGLContext> context)
     : m_realm(realm)
     , m_context(move(context))