[BugFix][tttext] Update the baseline graph after enabling half-leading in tttext.

Because enabling half-leading in tttext will change the layout, the baseline graph needs to be updated.

issue: m-6861836019
SkipChecks:cpp-header-path
AutoLand: release/3.7

Author: ci_lynx

clay/third_party/txt/src/tttext/paragraph_builder_tt_text.cc

@@ -193,7 +193,7 @@ void ParagraphBuilderTTText::ToTTParaStyle(const ParagraphStyle& para_style) {
   tt_para_style.EnableTextBounds(para_style.enable_text_bounds);
   tt_para_style.SetDefaultStyle(ToTTStyle(text_style));
   tt_para_style.SetLineSpaceAfterPx(para_style.line_spacing);
-  tt_para_style.SetHalfLeading(para_style.strut_half_leading);
+  tt_para_style.SetHalfLeading(para_style.half_leading);
 }
 void ParagraphBuilderTTText::CreateParagraph() {
   if (paragraph_ == nullptr) {

clay/third_party/txt/src/txt/paragraph_style.h

@@ -87,6 +87,8 @@ class ParagraphStyle {
   double line_spacing = 0.0;
   bool strut_has_height_override = false;
   bool strut_half_leading = false;
+  // This is for tttext
+  bool half_leading = true;
   double strut_leading = -1;  // Negative to use font's default leading. [0,inf)
                               // to use custom leading as a ratio of font size.
   bool force_strut_height = false;