New link rel=prerender api, using WebKit::WebPrerenderingPlatform

chrome/common/prerender_messages.h

Index: chrome/common/prerender_messages.h
diff --git a/chrome/common/prerender_messages.h b/chrome/common/prerender_messages.h
index 4c965a94f9fdeae3a7abb37734a4d1fcf63bd7a0..0380dd2e728f08103702967363d9bcc4bd8cd2fb 100644
--- a/chrome/common/prerender_messages.h
+++ b/chrome/common/prerender_messages.h
@@ -3,13 +3,42 @@
 // found in the LICENSE file.
 
 // Multiply-included message file, no traditional include guard.
+#include "content/public/common/common_param_traits.h"
+#include "content/public/common/referrer.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebReferrerPolicy.h"
+#include "ui/gfx/size.h"
 
 #define IPC_MESSAGE_START PrerenderMsgStart
 
+// PrerenderLinkManager Messages
+// These are messages sent from the renderer to the browser in
+// relation to <link rel=prerender> elements.
+
+// Notifies of the insertion of a <link rel=prerender> element in the
+// document.
+IPC_MESSAGE_CONTROL5(PrerenderHostMsg_AddPrerender,

[cbentzel, 2012/05/04 15:32:25]

Should each of these be AddLinkRelPrerender or something similar?

[gavinp, 2012/05/04 23:10:51]

Done.

+                     int /* id, assigned by WebPrerendererClient */,

[cbentzel, 2012/05/04 15:32:25]

nit: prerender_id would be clearer than this description. 

[gavinp, 2012/05/04 23:10:51]

Done.

+                     GURL /* url */,
+                     content::Referrer,
+                     gfx::Size,
+                     int /* render_view_route_id of launcher */)
+
+// Notifies on removal of a <link rel=prerender> element from the document.
+IPC_MESSAGE_CONTROL1(PrerenderHostMsg_CancelPrerender,
+                     int /* id, assigned by WebPrerendererClient */)
+
+// Notifies on unloading a <link rel=prerender> element from a frame.
+IPC_MESSAGE_CONTROL1(PrerenderHostMsg_AbandonPrerender,
+                     int /* id, assigned by WebPrerendererClient */)
+
+// PrerenderDispatcher Messages
+// These are messages sent from the browser to the renderer in relation to
+// running prerenders.
+
 // Tells a renderer if it's currently being prerendered.  Must only be set
 // to true before any navigation occurs, and only set to false at most once
 // after that.