Add support for drawImageLattice in SKIA debugger

Add support in SKIA debugger for SkCanvas.drawImageLattice calls.

Test: Tested with an SKP from android settings app.
Change-Id: I3f39f353dca8a3a2854241e7ef995d4d8c635f3e
Reviewed-on: https://skia-review.googlesource.com/6882
Commit-Queue: Stan Iliev <stani@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>
diff --git a/tools/debugger/SkObjectParser.h b/tools/debugger/SkObjectParser.h
index 4805179..2532c5c 100644
--- a/tools/debugger/SkObjectParser.h
+++ b/tools/debugger/SkObjectParser.h
@@ -129,6 +129,12 @@
      */
     static SkString* TextToString(const void* text, size_t byteLength,
                                   SkPaint::TextEncoding encoding);
+
+    /**
+        Returns a string representation of the SkCanvas::Lattice.
+        @param lattice  SkCanvas::Lattice
+     */
+    static SkString* LatticeToString(const SkCanvas::Lattice& lattice);
 };
 
 #endif