Remove dependency on Profile's IsOffTheRecord in favicon_handler.

chrome/browser/favicon/DEPS

 include_rules = [
   # Favicon is being made into a Browser Component, so we have these
   # three basic rules followed by temporary exceptions.  Please don't
   # add to the list of exceptions!
   "-chrome/browser",
   "+chrome/browser/chrome_notification_types.h",
   "+chrome/browser/common",
   "+chrome/browser/favicon",
 
   # Permanently-allowed DEPS beyond the standard Browser
   # Components-like DEPS above go here.
   "+chrome/browser/search/search.h",
+  "+components/favicon/content",
   "+components/favicon/core",
   "+third_party/skia/include/core/SkBitmap.h",
 
   # TODO(caitkp): Bring this list to zero.
   #
   # Do not add to the list of temporarily-allowed dependencies below,
   # and please do not introduce more #includes of these files.
   "!chrome/browser/bookmarks/bookmark_service.h",
   "!chrome/browser/history/history_backend.h",
   "!chrome/browser/history/history_details.h",
@@ skipping 11 matching lines @@
   'favicon_util\.(h|cc)': [
     "-chrome",
     "-chrome/browser",
     "+chrome/browser/favicon/favicon_util.h",
     "+chrome/common/favicon/favicon_types.h",
     "+chrome/common/icon_messages.h",
     "!chrome/browser/history/history_types.h",
     "!chrome/browser/history/select_favicon_frames.h",
   ]
 }