Context menu item to view original image when Data Saver is being used.

components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
index 7fdb3212c0808cfec96cee0502781088d15c8296..e2ec1da8aca8b2fa140b3635378ef07ebbf830bf 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
@@ -186,10 +186,16 @@ void DataReductionProxySettings::SetProxyConfigurator(
   configurator_ = configurator;
 }
 
-bool DataReductionProxySettings::IsDataReductionProxyEnabled() {
+bool DataReductionProxySettings::IsDataReductionProxyEnabled() const {
   return spdy_proxy_auth_enabled_.GetValue() || IsEnabledOnCommandLine();
 }
 
+bool DataReductionProxySettings::CanUseDataReductionProxy(const GURL& url)
+    const {
+  return url.is_valid() && (url.scheme() != "https") &&

[bengr, 2015/02/20 01:19:25]

why not specifically check that the scheme is http? And there's a constant
defined for such schemes somewhere in net/ so use that.

[Not at Google. Contact bengr, 2015/02/20 17:08:08]

Copied from Android implementation:
https://cs.corp.google.com/#clankium/src/clank/java/apps/chrome/src/com/googl...
Not sure if there was a reason for using != "https" rather than "http". Do you
know?

Cannot find any defined constant for "https":
https://cs.corp.google.com/#search/&q=%5C%22https%5C%22%20package:%5Eclankium...

[Not at Google. Contact bengr, 2015/02/20 18:43:38]

Used url::kHttpScheme and changed to '=='.

+      IsDataReductionProxyEnabled();
+}
+
 bool
 DataReductionProxySettings::IsDataReductionProxyAlternativeEnabled() const {
   return data_reduction_proxy_alternative_enabled_.GetValue();