Add the ability to specify a default MIME type when loading a resource. We'l...

chrome/browser/renderer_host/resource_dispatcher_host.cc

Index: chrome/browser/renderer_host/resource_dispatcher_host.cc
===================================================================
--- chrome/browser/renderer_host/resource_dispatcher_host.cc	(revision 12710)
+++ chrome/browser/renderer_host/resource_dispatcher_host.cc	(working copy)
@@ -395,6 +395,7 @@
                            request_id,
                            request_data.frame_origin,
                            request_data.main_frame_origin,
+                           request_data.default_mime_type,

[wtc, 2009/03/28 00:45:35]

Just curious: how do we decide if a piece of data should
be added to ExtraRequestInfo or to URLRequest itself?

If we add default_mime_type to URLRequest, it'll also work,
right?

[abarth-chromium, 2009/03/28 07:10:45]

In this case the decision is easy because URLRequest doesn't know anything about
content sniffing.  That's all handled at the ResourceDispatcherHost layer.

[wtc, 2009/03/30 18:29:46]

Thanks for the answer.  I also figured this out on my
way home last Friday -- if it'll be used or set by
URLRequest, add it as a member, otherwise it's "user data"
and we should add it to ExtraRequestInfo.

                            request_data.resource_type,
                            upload_size);
   extra_info->allow_download =
@@ -531,6 +532,7 @@
                            request_id_,
                            "null",  // frame_origin
                            "null",  // main_frame_origin
+                           "", // default_mime_type
                            ResourceType::SUB_RESOURCE,
                            0 /* upload_size */);
   extra_info->allow_download = true;
@@ -585,6 +587,7 @@
                            request_id_,
                            "null",  // frame_origin
                            "null",  // main_frame_origin
+                           "", // default_mime_type
                            ResourceType::SUB_RESOURCE,
                            0 /* upload_size */);
   // Just saving some resources we need, disallow downloading.