add pipe to nanobench

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3801

Change-Id: Ia0b90b1e2947a7b9ae7cb340ef5cd5b3251bbd23
Reviewed-on: https://skia-review.googlesource.com/3801
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/bench/RecordingBench.cpp b/bench/RecordingBench.cpp
index d8034ce..69be911 100644
--- a/bench/RecordingBench.cpp
+++ b/bench/RecordingBench.cpp
@@ -11,37 +11,42 @@
 #include "SkLiteRecorder.h"
 #include "SkPictureRecorder.h"
 
-RecordingBench::RecordingBench(const char* name, const SkPicture* pic, bool useBBH, bool lite)
-    : fName(name)
-    , fUseBBH(useBBH) {
+PictureCentricBench::PictureCentricBench(const char* name, const SkPicture* pic) : fName(name) {
     // Flatten the source picture in case it's trivially nested (useless for timing).
     SkPictureRecorder rec;
     pic->playback(rec.beginRecording(pic->cullRect(), nullptr,
                                      SkPictureRecorder::kPlaybackDrawPicture_RecordFlag));
     fSrc = rec.finishRecordingAsPicture();
+}
 
+const char* PictureCentricBench::onGetName() {
+    return fName.c_str();
+}
+
+bool PictureCentricBench::isSuitableFor(Backend backend) {
+    return backend == kNonRendering_Backend;
+}
+
+SkIPoint PictureCentricBench::onGetSize() {
+    return SkIPoint::Make(SkScalarCeilToInt(fSrc->cullRect().width()),
+                          SkScalarCeilToInt(fSrc->cullRect().height()));
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+RecordingBench::RecordingBench(const char* name, const SkPicture* pic, bool useBBH, bool lite)
+    : INHERITED(name, pic)
+    , fUseBBH(useBBH)
+{
     // If we're recording into an SkLiteDL, also record _from_ one.
     if (lite) {
-        fDL = SkLiteDL::New(pic->cullRect());
+        fDL = SkLiteDL::New(fSrc->cullRect());
         SkLiteRecorder r;
         r.reset(fDL.get());
         fSrc->playback(&r);
     }
 }
 
-const char* RecordingBench::onGetName() {
-    return fName.c_str();
-}
-
-bool RecordingBench::isSuitableFor(Backend backend) {
-    return backend == kNonRendering_Backend;
-}
-
-SkIPoint RecordingBench::onGetSize() {
-    return SkIPoint::Make(SkScalarCeilToInt(fSrc->cullRect().width()),
-                          SkScalarCeilToInt(fSrc->cullRect().height()));
-}
-
 void RecordingBench::onDraw(int loops, SkCanvas*) {
     if (fDL) {
         SkLiteRecorder rec;
@@ -61,3 +66,23 @@
         }
     }
 }
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include "SkPipe.h"
+#include "SkStream.h"
+
+PipingBench::PipingBench(const char* name, const SkPicture* pic) : INHERITED(name, pic) {
+    fName.prepend("pipe_");
+}
+
+void PipingBench::onDraw(int loops, SkCanvas*) {
+    SkDynamicMemoryWStream stream;
+    SkPipeSerializer serializer;
+
+    while (loops --> 0) {
+        fSrc->playback(serializer.beginWrite(fSrc->cullRect(), &stream));
+        serializer.endWrite();
+        stream.reset();
+    }
+}