Fix some grammatical errors in comments in net/

net/cookies/cookie_monster.cc

Index: net/cookies/cookie_monster.cc
diff --git a/net/cookies/cookie_monster.cc b/net/cookies/cookie_monster.cc
index 8a609d824b5a4c8c711edad9bf9738c8c80d182b..b3488ea641cfbe82eb69c0b501f848f697d853af 100644
--- a/net/cookies/cookie_monster.cc
+++ b/net/cookies/cookie_monster.cc
@@ -2667,8 +2667,8 @@ bool CookieMonster::CanonicalCookie::IsOnPath(
   if (path_.empty())
     return false;
 
-  // The Mozilla code broke it into 3 cases, if it's strings lengths
-  // are less than, equal, or greater.  I think this is simpler:
+  // The Mozilla code broke this into three cases: the lengths of the strings
+  // are less than, equal to, or greater. I think the approach below is simpler.

[mmenke, 2012/03/30 01:39:57]

This still doesn't make any sense.  I think this actually means the length of
|url_path| is less than, equal to, or greater than |path_|.  Two lengths of two
strings can't be each be less than the other...  Assuming string lengths are
determinate.

 
   // Make sure the cookie path is a prefix of the url path.  If the
   // url path is shorter than the cookie path, then the cookie path