Enable cpplint for more webrtc subfolders and fix all uncovered cpplint errors.

webrtc/tools/frame_editing/frame_editing_lib.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_H_
-#define WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_H_
+#ifndef WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_LIB_H_
+#define WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_LIB_H_
 
 #include <string>
 
 namespace webrtc {
 
 // Frame numbering starts at 1. The set of frames to be processed includes the
 // frame with the number: first_frame_to_process and last_frame_to_process.
 // Interval specifies with what interval frames should be cut or kept.
 // Example 1:
 // If one clip has 10 frames (1 to 10), and you specify
 // first_frame_to_process = 4, last_frame_to_process = 7 and interval = -1,
 // then you will get a clip that contains frame 1, 2, 3, 8, 9 and 10.
 // Example 2:
 // I you specify first_frame_to_process = 1, last_frame_to_process = 10 and
 // interval = -4, then you will get a clip that contains frame 1, 5, 9.
 // Example 3:
 // If you specify first_frame_to_process = 4, last_frame_to_process = 7 and
 // interval = 2, then you will get a clip that contains frame
 // 1, 2, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9 and 10.
 // No interpolation is done when up-sampling.
 
 int EditFrames(const std::string& in_path, int width, int height,
                 int first_frame_to_process, int interval,
                 int last_frame_to_process, const std::string& out_path);
 }  // namespace webrtc
 
-#endif  // WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_H_
+#endif  // WEBRTC_TOOLS_FRAME_EDITING_FRAME_EDITING_LIB_H_