Revert of Use TOP #1 language from CLD2 instead of the summary language (https:/...

Revert of Use TOP #1 language from CLD2 instead of the summary language (https://codereview.chromium.org/75483009/)

Reason for revert:
check licenses script failed and turned tree red:

http://build.chromium.org/p/chromium/builders/Linux/builds/48235/steps/check_licenses/logs/stdio

python src/tools/checklicenses/checklicenses.py --root src
 in dir /b/build/slave/Linux/build (timeout 600 secs) (maxTime 28800 secs)
 watching logfiles {}
 argv: ['python', 'src/tools/checklicenses/checklicenses.py', '--root', 'src']
 environment:
  AWS_CREDENTIAL_FILE=/b/build/site_config/.boto
  BOTO_CONFIG=/b/build/site_config/.boto
  CHROME_HEADLESS=1
  DISPLAY=:0.0
  HOME=/home/chrome-bot
  LANG=en_US.UTF-8
  LOGNAME=chrome-bot
  PAGER=cat
  PATH=/home/chrome-bot/slavebin:/b/depot_tools:/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
  PWD=/b/build/slave/Linux/build
  PYTHONPATH=/b/build/site_config:/b/build/scripts:/b/build/scripts/release:/b/build/third_party:/b/build_internal/site_config:/b/build_internal/symsrc:/b/build/slave:/b/build/third_party/buildbot_slave_8_4:/b/build/third_party/twisted_10_2:
  SHELL=/bin/bash
  USER=chrome-bot
 using PTY: False
Using base directory: src
Checking: src

'third_party/cld_2/src/internal/cld2_generated_deltaoctachrome0122.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_quadchrome0122_19.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_quadchrome0122_16.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_quadchrome0122_2.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_distinctoctachrome0122.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_deltaocta0122.cc' has non-whitelisted license 'UNKNOWN'
'third_party/cld_2/src/internal/cld2_generated_distinctocta0122.cc' has non-whitelisted license 'UNKNOWN'

FAILED

Please read http://www.chromium.org/developers/adding-3rd-party-libraries
for more info how to handle the failure.

Original issue's description:
> Use TOP #1 language from CLD2 instead of the summary language
>
> The summary language and the top language are different, and the top language should be used for Translate. Originally, Chromium adopts the top language of CLD1, and summary language of CLD2. This CL fixes to use the top language even in the case of CLD2.
>
> BUG=320362
> TEST=manual
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=236228

TBR=toyoshim@chromium.org,hajimehoshi@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=320362

Review URL: https://codereview.chromium.org/200453005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257142 0039d316-1c4b-4281-b951-d872f2087c98