[Experimental] Supporting OOPIF printing

skia/ext/skia_utils_base.cc

Index: skia/ext/skia_utils_base.cc
diff --git a/skia/ext/skia_utils_base.cc b/skia/ext/skia_utils_base.cc
index c56730bd9bc8f0b1c294617d2ab4e1829aca11d4..01ed5de6d06a48c1f2c9648b91775053abff4ba9 100644
--- a/skia/ext/skia_utils_base.cc
+++ b/skia/ext/skia_utils_base.cc
@@ -2,10 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "skia/ext/skia_utils_base.h"
+
 #include <stdint.h>
 
-#include "skia/ext/skia_utils_base.h"
 #include "third_party/skia/include/core/SkFontLCDConfig.h"
+#include "third_party/skia/src/core/SkReadBuffer.h"
 
 namespace skia {
 
@@ -101,5 +103,25 @@ SkPixelGeometry ComputeDefaultPixelGeometry() {
   return gGeo[index];
 }
 
+std::unique_ptr<SkDrawable> ReadDrawable(const char* buffer, size_t size) {
+  SkReadBuffer rBuffer(buffer, size);
+  rBuffer.setCustomFactory(SkString(SkFutureDrawable::kTypeName),
+                           SkFutureDrawable::CreateProc);
+
+  std::unique_ptr<SkDrawable> drawable(
+      (SkDrawable*)rBuffer.readFlattenable(SkFlattenable::kSkDrawable_Type));
+  return drawable;
+}
+
+std::vector<char> WriteDrawable(SkDrawable* drawable) {
+  SkBinaryWriteBuffer wBuffer;
+  wBuffer.writeFlattenable(drawable);
+  size_t size = wBuffer.bytesWritten();
+  std::vector<char> data;
+  data.resize(size);
+  wBuffer.writeToMemory(data.data());
+  return data;
+}
+
 }  // namespace skia