libtxt: fix some typos (#4206)

lib/ui/text.dart

@@ -103,14 +103,14 @@ enum TextAlign {
   ///
   /// For left-to-right text ([TextDirection.ltr]), this is the left edge.
   ///
-  /// For right-to-left text ([TextDirection.rtr]), this is the right edge.
+  /// For right-to-left text ([TextDirection.rtl]), this is the right edge.
   start,
 
   /// Align the text on the trailing edge of the container.
   ///
   /// For left-to-right text ([TextDirection.ltr]), this is the right edge.
   ///
-  /// For right-to-left text ([TextDirection.rtr]), this is the left edge.
+  /// For right-to-left text ([TextDirection.rtl]), this is the left edge.
   end,
 }
 

third_party/txt/benchmarks/txt_run_all_benchmarks.cc

@@ -30,7 +30,7 @@ int main(int argc, char** argv) {
   txt::SetFontDir(dir);
   if (txt::GetFontDir().length() <= 0) {
     FXL_LOG(ERROR) << "Font directory must be specified with "
-                      "--font-directoy=\"<directoy>\" to run this test.";
+                      "--font-directory=\"<directory>\" to run this test.";
     return EXIT_FAILURE;
   }
   FXL_DCHECK(txt::GetFontDir().length() > 0);

third_party/txt/src/txt/paragraph.h

@@ -48,7 +48,7 @@ using GlyphID = uint32_t;
 //   paragraph->Paint(<someSkCanvas>, <xpos>, <ypos>);
 class Paragraph {
  public:
-  // Constructor. I is highly recommended to construct a paragrph with a
+  // Constructor. It is highly recommended to construct a paragraph with a
   // ParagraphBuilder.
   Paragraph();
 

third_party/txt/tests/txt_run_all_unittests.cc

@@ -31,7 +31,7 @@ int main(int argc, char** argv) {
   txt::SetFontDir(dir);
   if (txt::GetFontDir().length() <= 0) {
     FXL_LOG(ERROR) << "Font directory must be specified with "
-                      "--font-directoy=\"<directoy>\" to run this test.";
+                      "--font-directory=\"<directory>\" to run this test.";
     return EXIT_FAILURE;
   }
   FXL_DCHECK(txt::GetFontDir().length() > 0);