Removing references to off the record in comments and log messages.

chrome/browser/tab_contents/thumbnail_generator.cc

Index: chrome/browser/tab_contents/thumbnail_generator.cc
diff --git a/chrome/browser/tab_contents/thumbnail_generator.cc b/chrome/browser/tab_contents/thumbnail_generator.cc
index ab7933162e17b1c09fe1ece373cd54fe6a3affcf..f494bb5293540b2808cc9f6ce397f7cf817e49f1 100644
--- a/chrome/browser/tab_contents/thumbnail_generator.cc
+++ b/chrome/browser/tab_contents/thumbnail_generator.cc
@@ -664,7 +664,7 @@ bool ThumbnailGenerator::ShouldUpdateThumbnail(Profile* profile,
                                                const GURL& url) {
   if (!profile || !top_sites)
     return false;
-  // Skip if it's in the off-the-record mode.
+  // Skip if it's in the incognito mode.
   if (profile->IsOffTheRecord())
     return false;
   // Skip if the given URL is not appropriate for history.