OOPIFs: Transitioning Get/Send...SavableResourceLinks away from RenderViewHost.

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index 28f27db5245bbcb1507885ac71efa58a66915e4e..48c697c81903f510e00af744bfb8416fb8012115 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -643,6 +643,10 @@ IPC_MESSAGE_ROUTED4(FrameMsg_FailedNavigation,
                     bool,                             /* stale_copy_in_cache */
                     int                               /* error_code */)
 
+// Request to enumerate and return links to all savable resources in the frame
+// Note: this covers only the immediate frame / doesn't cover subframes.
+IPC_MESSAGE_ROUTED0(FrameMsg_GetSavableResourceLinks)
+
 #if defined(ENABLE_PLUGINS)
 // Notifies the renderer of updates to the Plugin Power Saver origin whitelist.
 IPC_MESSAGE_ROUTED1(FrameMsg_UpdatePluginContentOriginWhitelist,
@@ -1022,6 +1026,16 @@ IPC_MESSAGE_ROUTED0(FrameHostMsg_DispatchLoad)
 IPC_MESSAGE_ROUTED1(FrameHostMsg_RouteMessageEvent,
                     FrameMsg_PostMessage_Params)
 
+// Response to FrameMsg_GetSavableResourceLinks.
+IPC_MESSAGE_ROUTED2(FrameHostMsg_SavableResourceLinksResponse,
+                    std::vector<GURL> /* savable resource links */,
+                    std::vector<content::Referrer> /* referrers */)
+
+// Response to FrameMsg_GetSavableResourceLinks in case the frame contains
+// non-savable content (i.e. from a non-savable scheme) or if there were
+// errors gathering the links.
+IPC_MESSAGE_ROUTED0(FrameHostMsg_SavableResourceLinksError)
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.