Add missing text blob SkDrawCommand string.

src/utils/debugger/SkDrawCommand.cpp

Index: src/utils/debugger/SkDrawCommand.cpp
diff --git a/src/utils/debugger/SkDrawCommand.cpp b/src/utils/debugger/SkDrawCommand.cpp
index 3cebca2c64588fd44f2aa9278eaf8e91eba9d6a6..3b1a028d808459243396f32a379776224c43e52e 100644
--- a/src/utils/debugger/SkDrawCommand.cpp
+++ b/src/utils/debugger/SkDrawCommand.cpp
@@ -54,6 +54,7 @@ const char* SkDrawCommand::GetCommandString(DrawType type) {
         case DRAW_RRECT: return "Draw RRect";
         case DRAW_SPRITE: return "Draw Sprite";
         case DRAW_TEXT: return "Draw Text";
+        case DRAW_TEXT_BLOB: return "Draw Text Blob";
         case DRAW_TEXT_ON_PATH: return "Draw Text On Path";
         case DRAW_VERTICES: return "Draw Vertices";
         case RESTORE: return "Restore";