Consistently use LoFi for an entire page

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc

Index: chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
diff --git a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
index e86ef16df29ccb62f0ca45d2a70498380d2a8df5..b7a15ca75c6bf01676f43b49337b6bd4f9223de4 100644
--- a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
+++ b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc
@@ -34,6 +34,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/url_constants.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
+#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/variations/net/variations_http_header_provider.h"
 #include "content/public/browser/browser_thread.h"
@@ -721,6 +722,18 @@ void ChromeResourceDispatcherHostDelegate::RequestComplete(
   }
 }
 
+bool ChromeResourceDispatcherHostDelegate::ShouldEnableLoFiMode(
+    const net::URLRequest& url_request,
+    content::ResourceContext* resource_context) {
+  ProfileIOData* io_data = ProfileIOData::FromResourceContext(resource_context);
+  data_reduction_proxy::DataReductionProxyIOData* data_reduction_proxy_io_data =
+      io_data->data_reduction_proxy_io_data();
+
+  if (data_reduction_proxy_io_data)
+    return data_reduction_proxy_io_data->ShouldEnableLoFiMode(url_request);
+  return false;
+}
+
 // static
 void ChromeResourceDispatcherHostDelegate::
     SetExternalProtocolHandlerDelegateForTesting(