Add scroll perf test for protocol in chromoting

remoting/test/cyclic_frame_generator.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_CYCLIC_FRAME_GENERATOR_H_
 #define REMOTING_TEST_CYCLIC_FRAME_GENERATOR_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 29 matching lines @@
     ChangeInfo(ChangeType type, base::TimeTicks timestamp);
 
     ChangeType type = ChangeType::NO_CHANGES;
     base::TimeTicks timestamp;
   };
 
   typedef std::vector<ChangeInfo> ChangeInfoList;
 
   static scoped_refptr<CyclicFrameGenerator> Create();
 
-  CyclicFrameGenerator(
+  explicit CyclicFrameGenerator(
       std::vector<std::unique_ptr<webrtc::DesktopFrame>> reference_frames);
 
   void set_frame_cycle_period(base::TimeDelta frame_cycle_period) {
     frame_cycle_period_ = frame_cycle_period;
   }
 
   void set_cursor_blink_period(base::TimeDelta cursor_blink_period) {
     cursor_blink_period_ = cursor_blink_period;
   }
 
@@ skipping 49 matching lines @@
   // frame_id of the frame passed to the last GetChangeList() call.
   int last_identifier_frame_ = -1;
 
   DISALLOW_COPY_AND_ASSIGN(CyclicFrameGenerator);
 };
 
 }  // namespace test
 }  // namespace remoting
 
 #endif  // REMOTING_TEST_CYCLIC_FRAME_GENERATOR_H_