Consistently use LoFi for an entire page

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index cdeba40c86a8054de3aef1cb5afe6164cba72bc4..dda799d70e69c9ae1ec9746a6831eaad6293c886 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -18,6 +18,7 @@
 #include "content/common/accessibility_mode_enums.h"
 #include "content/common/frame_message_enums.h"
 #include "content/common/mojo/service_registry_impl.h"
+#include "content/common/navigation_params.h"
 #include "content/public/common/console_message_level.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/referrer.h"
@@ -208,7 +209,7 @@ class CONTENT_EXPORT RenderFrameImpl
   // This method must be called after the frame has been added to the frame
   // tree. It creates all objects that depend on the frame being at its proper
   // spot.
-  void Initialize();
+  void Initialize(LoFiState lofi_state = LOFI_DEFAULT);
 
   // Notifications from RenderWidget.
   void WasHidden();
@@ -1006,6 +1007,10 @@ class CONTENT_EXPORT RenderFrameImpl
 
   scoped_ptr<blink::WebBluetooth> bluetooth_;
 
+  // Whether or not the LoFi header should be added to the request or if the
+  // decision should be left up to the network-quality-based triggering logic.

[bengr, 2015/08/25 00:00:02]

I wouldn't get into how the browser process decides. For example, we may add a
user pref and use LOFI_DEFAULT to signify that the pref should be checked.

[megjablon, 2015/08/25 20:29:47]

Done.

+  LoFiState lofi_state_;
+
 #if defined(ENABLE_WEBVR)
   // The VR dispatcher attached to the frame, lazily initialized.
   scoped_ptr<VRDispatcher> vr_dispatcher_;