Consistently use LoFi for an entire page

net/url_request/url_request.cc

Index: net/url_request/url_request.cc
diff --git a/net/url_request/url_request.cc b/net/url_request/url_request.cc
index c12f9d1ea26d83a49569b8d8945c07efbbd585c2..aec76de744c98579588ca33ea760c9839f4cfa99 100644
--- a/net/url_request/url_request.cc
+++ b/net/url_request/url_request.cc
@@ -484,6 +484,10 @@ void URLRequest::set_delegate(Delegate* delegate) {
   delegate_ = delegate;
 }
 
+void URLRequest::set_lofi_state(LoFiState lofi_state) {
+  lofi_state_ = lofi_state;
+}
+
 void URLRequest::Start() {
   // TODO(pkasting): Remove ScopedTracker below once crbug.com/456327 is fixed.
   tracked_objects::ScopedTracker tracking_profile(
@@ -557,7 +561,8 @@ URLRequest::URLRequest(const GURL& url,
       has_notified_completion_(false),
       received_response_content_length_(0),
       creation_time_(base::TimeTicks::Now()),
-      notified_before_network_start_(false) {
+      notified_before_network_start_(false),
+      lofi_state_(LOFI_DEFAULT) {
   // Sanity check out environment.
   DCHECK(base::MessageLoop::current())
       << "The current base::MessageLoop must exist";