Use exactly one of final, override, and virtual

Use exactly one of final, override, and virtual.

This change was generated mechanically by running:

  find . \
      \( -name \*.cc -or -name \*.mm -or -name \*.h \) \
      -and -not -path ./third_party/\* -and -not -path ./out/\* -exec \
      sed -i '' -E -e 's/virtual (.*) override final/\1 final/' {} +

  find . \
      \( -name \*.cc -or -name \*.mm -or -name \*.h \) \
      -and -not -path ./third_party/\* -and -not -path ./out/\* -exec \
      sed -i '' -E -e 's/virtual (.*) override/\1 override/' {} +

Additional changes were made manually based on:

  git grep -E '^ {3,}.*override[;{]'

http://google-styleguide.googlecode.com/svn/trunk/cppguide.html?showone=The__define_Guard#Inheritance

TEST=*_test
BUG=
R=rsesek@chromium.org

Committed: https://chromium.googlesource.com/crashpad/crashpad/+/525de2c35a376787e084e4028e952792b1d5b85a

[Mark Mentovai, 2014-10-14 13:58:27]

Patchset #3 (id:40001) has been deleted

[Mark Mentovai, 2014-10-14 14:02:12]

mark@chromium.org changed reviewers:
+ rsesek@chromium.org

[Robert Sesek, 2014-10-14 14:43:58]

LGTM

[Mark Mentovai, 2014-10-14 15:12:00]

Committed patchset #3 (id:60001) manually as
525de2c35a376787e084e4028e952792b1d5b85a (presubmit successful).