Use sk_sp text blob APIs

tools/debugger/SkDebugCanvas.cpp

Index: tools/debugger/SkDebugCanvas.cpp
diff --git a/tools/debugger/SkDebugCanvas.cpp b/tools/debugger/SkDebugCanvas.cpp
index 86125b891d746ae09842e5864b4e4e109c658d0e..4c633ab8fcb4f23b623d439092d8987af28a7f91 100644
--- a/tools/debugger/SkDebugCanvas.cpp
+++ b/tools/debugger/SkDebugCanvas.cpp
@@ -9,8 +9,9 @@
 #include "SkClipStack.h"
 #include "SkDebugCanvas.h"
 #include "SkDrawCommand.h"
-#include "SkPaintFilterCanvas.h"
 #include "SkOverdrawMode.h"
+#include "SkPaintFilterCanvas.h"
+#include "SkTextBlob.h"
 
 #if SK_SUPPORT_GPU
 #include "GrAuditTrail.h"
@@ -677,7 +678,8 @@ void SkDebugCanvas::onDrawTextRSXform(const void* text, size_t byteLength, const
 
 void SkDebugCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
                                    const SkPaint& paint) {
-    this->addDrawCommand(new SkDrawTextBlobCommand(blob, x, y, paint));
+    this->addDrawCommand(new SkDrawTextBlobCommand(sk_ref_sp(const_cast<SkTextBlob*>(blob)),
+                                                   x, y, paint));
 }
 
 void SkDebugCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],