HTML exit reader view button

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 4d5c85391b6477f644b3edfabd28599e29f8dd53..7659b533f903922fc00449f5e7f544a3c5825e72 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -1410,7 +1410,8 @@ _DEPRECATED_CSS = [
 def _CheckNoDeprecatedCSS(input_api, output_api):
   """ Make sure that we don't use deprecated CSS
       properties, functions or values. Our external
-      documentation is ignored by the hooks as it
+      documentation and iOS CSS for dom distiller
+      (reader mode) are ignored by the hooks as it
       needs to be consumed by WebKit. """
   results = []
   file_inclusion_pattern = (r".+\.css$",)
@@ -1419,6 +1420,7 @@ def _CheckNoDeprecatedCSS(input_api, output_api):
                 input_api.DEFAULT_BLACK_LIST +
                 (r"^chrome/common/extensions/docs",
                  r"^chrome/docs",
+                 r"^components/dom_distiller/core/css/distilledpage_ios.css",
                  r"^native_client_sdk"))
   file_filter = lambda f: input_api.FilterSourceFile(
       f, white_list=file_inclusion_pattern, black_list=black_list)