Add scroll perf test for protocol in chromoting

remoting/test/frame_generator_util.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_TEST_FRAME_GENERATOR_UTIL_H_
+#define REMOTING_TEST_FRAME_GENERATOR_UTIL_H_
+
+#include <memory>
+
+#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+
+namespace webrtc {
+class DesktopFrame;
+}  // namespace webrtc
+
+namespace remoting {
+namespace test {
+
+// Loads test image from remoting/test/data.
+std::unique_ptr<webrtc::DesktopFrame> LoadDesktopFrameFromPng(const char* name);
+
+// Draws rectangle filled with the given |color|.
+void DrawRect(webrtc::DesktopFrame* frame,
+              webrtc::DesktopRect rect,
+              uint32_t color);
+
+// Draws barcode that encodes |value| on the |frame|. If |changed| is true then
+// frame->updated_region() will be updated as well.
+void DrawBarcode(int value, bool changed, webrtc::DesktopFrame* frame);
+
+// Reads barcode from the frame.
+int ReadBarcode(const webrtc::DesktopFrame& frame);
+
+}  // namespace test
+}  // namespace remoting
+
+#endif  // REMOTING_TEST_FRAME_GENERATOR_UTIL_H_