Consistently use LoFi for an entire page

content/common/resource_messages.h

Index: content/common/resource_messages.h
diff --git a/content/common/resource_messages.h b/content/common/resource_messages.h
index c435263ace4c0f195a524f105d5330773d6e4c16..521a033408cae7de147570cbb67a5809a5d27185 100644
--- a/content/common/resource_messages.h
+++ b/content/common/resource_messages.h
@@ -10,6 +10,7 @@
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "content/common/content_param_traits_macros.h"
+#include "content/common/navigation_params.h"
 #include "content/common/resource_request_body.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/common/common_param_traits.h"
@@ -135,6 +136,7 @@ IPC_STRUCT_TRAITS_BEGIN(content::ResourceResponseInfo)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_start_time)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_ready_time)
   IPC_STRUCT_TRAITS_MEMBER(proxy_server)
+  IPC_STRUCT_TRAITS_MEMBER(is_lofi)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(net::RedirectInfo)
@@ -267,6 +269,10 @@ IPC_STRUCT_BEGIN(ResourceHostMsg_Request)
 
   // Whether or not we should allow the URL to download.
   IPC_STRUCT_MEMBER(bool, allow_download)
+
+  // Whether or not to request a LoFi version of the resource or let the browser
+  // decide.
+  IPC_STRUCT_MEMBER(int, lofi_state)

[davidben, 2015/08/27 18:53:50]

This needs to be an enum, not an int. The IPC logic should also ensure thath
invalid enum values are discarded. (nasko would know more about this.)

[megjablon, 2015/08/27 23:11:02]

Is there a way for an IPC struct to have enums? I couldn't figure out a way to
do this.

[megjablon, 2015/09/09 20:54:16]

Done.

 IPC_STRUCT_END()
 
 // Parameters for a ResourceMsg_RequestComplete