Add matrix configs to DM

dm/DM.cpp

Index: dm/DM.cpp
diff --git a/dm/DM.cpp b/dm/DM.cpp
index 006e208993bebc64f140382bb10389545ab20efe..5d4718775847340684547d1de12493016c6f94e0 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -381,6 +381,21 @@ static Sink* create_via(const char* tag, Sink* wrapped) {
         m.setScaleY((SkScalar)atof(FLAGS_matrix[3]));
         VIA("matrix",  ViaMatrix,  m, wrapped);
         VIA("upright", ViaUpright, m, wrapped);
+    } else if (FLAGS_matrix.count() == 9) {
+        SkMatrix m;
+        m.reset();
+        m.setAll((SkScalar)atof(FLAGS_matrix[0]),
+                 (SkScalar)atof(FLAGS_matrix[1]),
+                 (SkScalar)atof(FLAGS_matrix[2]),
+                 (SkScalar)atof(FLAGS_matrix[3]),
+                 (SkScalar)atof(FLAGS_matrix[4]),
+                 (SkScalar)atof(FLAGS_matrix[5]),
+                 (SkScalar)atof(FLAGS_matrix[6]),
+                 (SkScalar)atof(FLAGS_matrix[7]),
+                 (SkScalar)atof(FLAGS_matrix[8]));
+
+        VIA("matrix",  ViaMatrix,  m, wrapped);
+        VIA("upright", ViaUpright, m, wrapped);

[mtklein, 2015/05/05 15:51:44]

I suspect ViaUpright won't really be a useful thing to have here with a general
matrix.  It's really geared to work with only scale/skew matrices.

     }
 
 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK