Fix a clang warning:

../../breakpad/src/processor/tokenize.cc:65:7: error: logical not is only applied to the left hand side of this comparison [-Werror,-Wlogical-not-parentheses]
  if (!remaining > 0) {
      ^          ~
../../breakpad/src/processor/tokenize.cc:65:7: note: add parentheses after the '!' to evaluate the comparison first
  if (!remaining > 0) {
      ^
       (            )
../../breakpad/src/processor/tokenize.cc:65:7: note: add parentheses around left hand side expression to silence this warning
  if (!remaining > 0) {
      ^
      (         )

R=thakis@chromium.org

Review URL: https://breakpad.appspot.com/608002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1196 4c0a9323-5329-0410-9bdc-e9ce6186880e