Hook up new distillability signal to DistillablePageUtils

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index f1ee07ecd399d85e35d77bd4b31cbf65cd6fd835..f6fa0c66e1b92f7f5a6d04753c17cafc5426e47f 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -109,6 +109,7 @@
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.h"
+#include "components/dom_distiller/core/dom_distiller_switches.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/metrics/client_info.h"
@@ -1580,6 +1581,7 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
       switches::kProfilingAtStart,
       switches::kProfilingFile,
       switches::kProfilingFlush,
+      switches::kReaderModeHeuristics,

[Lei Zhang, 2015/11/12 22:51:37]

You are forwarding this switch to renderers, but it's not obvious where in the
renderer it's actually being used. Can you point that out?

[wychen, 2015/11/12 23:07:03]

I guess this conceptually belongs to the CL this depends on.
I've moved it there https://codereview.chromium.org/1434433002/.

       switches::kUnsafelyTreatInsecureOriginAsSecure,
       translate::switches::kTranslateSecurityOrigin,
     };