SVG backend in DM

dm/DMSrcSink.h

Index: dm/DMSrcSink.h
diff --git a/dm/DMSrcSink.h b/dm/DMSrcSink.h
index 16f7c144eba5f43b7c0ba249244501349848155e..78704a0f79ee3673103d26e3e449db9b3d5878e4 100644
--- a/dm/DMSrcSink.h
+++ b/dm/DMSrcSink.h
@@ -128,6 +128,16 @@ public:
     const char* fileExtension() const SK_OVERRIDE { return "skp"; }
 };
 
+class SVGSink : public Sink {
+public:
+    SVGSink();
+
+    Error draw(const Src&, SkBitmap*, SkWStream*) const SK_OVERRIDE;
+    int enclave() const SK_OVERRIDE { return kAnyThread_Enclave; }
+    const char* fileExtension() const SK_OVERRIDE { return "svg"; }
+};
+
+
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
 class ViaMatrix : public Sink {