Wire up /batches in skiaserve

tools/skiaserve/Request.h

Index: tools/skiaserve/Request.h
diff --git a/tools/skiaserve/Request.h b/tools/skiaserve/Request.h
index a3276fa38b503d1a9871fe7a1cb6a427d95e989b..f6ee994ecdab6045c2de0b228847bcb1f64bd9d0 100644
--- a/tools/skiaserve/Request.h
+++ b/tools/skiaserve/Request.h
@@ -39,6 +39,14 @@ struct Request {
     SkCanvas* getCanvas();
     SkData* writeCanvasToPng(SkCanvas* canvas);
     SkBitmap* getBitmapFromCanvas(SkCanvas* canvas);
+    bool hasPicture() const { return SkToBool(fPicture.get()); }
+    int getLastOp() const { return fDebugCanvas->getSize() - 1; }
+
+    // Returns the json list of ops as an SkData
+    SkData* getJsonOps(int n);
+
+    // Returns a json list of batches as an SkData
+    SkData* getJsonBatchList(int n);
 
     // TODO probably want to make this configurable
     static const int kImageWidth;