parse *.h issue which is related to the path

[jgongquvideo]

When I work on webrtc src-code, there is an strange issue found:

My webrtc source root is: ~/dev/webrtc_android/

#step-1 When I open this head-file, the highlight is now right: ~/dev/webrtc_android/src/modules/audio_processing/include/audio_processing.h
It looks like this:

#step-2 Then I try to mv this audio_processing.h to another path:
~/dev/test/audio_processing.h
and open it with vim. The highlight works well like this:

It seems to relate to the path name.
#step-3 Again, I tried another case:

• still in the webrtc path: ~/dev/webrtc_android/src/modules/audio_processing/include/
• rename another headfile(audio_generator.h) to audio_processing.h
• and open the new-fake "audio_processing.h"
  the highlight is wrong which is same to #step-1

#step-4: one more test

• "audio_processing.h" originally located in ~/dev/webrtc_android/src/modules/audio_processing/include/
• cp it to ~/dev/webrtc_android/src/modules/audio_processing/mydir/
• open it with vim, highlight works well
  so the dir "include" seems affect the highlight parsing.

Up to now, I tried three case:

1. open the "audio_processing.h" in the original source path----hightlight not ok
2. copy the special "audio_processing.h" to another totally different path, and open it with vim ----highlight ok
3. rename another head-file to "audio_processing.h" in original source path, and open it wieh vim----highlight not ok
4. based on the orignial webrtc source path framework, only mv "audio_processing.h" to another directory----highlight ok

I GUESS:
This issue is related to the path name, which is sensitive to "include"?

Other info:

1. I enable the colorscheme in my .vimrc (refer to my .vimrc for more info)
2. my vim version:
   VIM - Vi IMproved 7.4
3. ubuntu version:
   Ubuntu 16.04.6 LTS
4. other *.h works well in the path: ~/dev/webrtc_android/src/modules/audio_processing/include/
5. even I disable the "colorscheme molokai", the problem still happens
6. my .vimrc is an link, and attached with the special "audio_processing.h" as gz-file:
   lrwxrwxrwx 1 jgong jgong 31 8月 12 17:57 .vimrc -> /home/jgong/.spf13-vim-3/.vimrc
7. attached stuff: hightlight_problem.tar.gz

Is it possible to have a glance to this problem?
If your buddy want any other info, please feel free to let me know!
Thx!~