Reset translate settings doesn't take effect on Nexus 5.

On Nexus 5, I tried to reset Translate Settings by
Chrome Overflow menu -> Settings -> Site settings ->
Google Translate -> Reset Translate Settings.

But after doing that, the TranslationAcceptedCount and
TranslationDeniedCount is not reset to 0.
(verified by printing the their values on logcat)

This problem doesn't happen on Pixel.

This problem will probably happen on the old infobar as well.
Need to test to confirm.

 

Reset translate settings doesn't reset accept/denied/ignored counts.

Steps to reproduce: 
1. The system language of my device is English and Chinese.
2. In Chrome, I browse a Japanese website
3. use the translate infobar the Japanese website to English.
   (TranslationAcceptedCount of Japanese is incremented to 1.)
4. I then reset Translate Settings by:
   Chrome Overflow menu -> Settings -> Site settings ->
   Google Translate -> Reset Translate Settings.

Observed behavior:
only the TranslationAcceptedCount of Chinese and English
was reset to 0.
TranslationAcceptedCount of Japanese still remains 1.

Expected behavior:
TranslationAcceptedCount of Japanese should be reset to 0.

Root cause:
In translate_prefs.cc, ResetToDefaults()
Only the counters in the language of GetLanguageList will be reset.
However, GetLanguageList gets languages from accept_languages_pref_
(Chinese, English) instead of all the languages ever translated
(Japanese in the case above).

Same issue happens to TranslationDeniedCount and TranslationIgnoredCount.
 

Reset translate settings doesn't reset accept/denied/ignored counts.

Steps to reproduce: 
1. The system language of my device is English and Chinese.
2. In Chrome, I browse a Japanese website
3. use the translate infobar to translate the website to English.
   (TranslationAcceptedCount of Japanese is incremented to 1.)
4. I then reset Translate Settings by:
   Chrome Overflow menu -> Settings -> Site settings ->
   Google Translate -> Reset Translate Settings.

Observed behavior:
only the TranslationAcceptedCount of Chinese and English
was reset to 0.
TranslationAcceptedCount of Japanese still remains 1.

Expected behavior:
TranslationAcceptedCount of Japanese should be reset to 0.

Root cause:
In translate_prefs.cc, ResetToDefaults()
Only the counters in the language of GetLanguageList will be reset.
However, GetLanguageList gets languages from accept_languages_pref_
(Chinese, English) instead of all the languages ever translated
(Japanese in the case above).

Same issue happens to TranslationDeniedCount and TranslationIgnoredCount.