Bump PRESUBMIT check to 800 characters.
Bump PRESUBMIT check to 800 characters.

I've tried and failed to land two CLs via the commit queue that were blocked
because they touched preexisting lines longer than 250 characters. We cover
all but two non-generated files by bumping up to 450 characters:
https://code.google.com/p/chromium/codesearch#search/&q=%5E.%7B450,%7D%20file:.cpp&sq=package:chromium&type=cs
Both those files are well over 1k characters, and I think they can safely be
considered outliers. This CL splits the difference, and lands on 800
because Nico mentioned it.

Review URL: https://codereview.chromium.org/14371015

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@148842 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs