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

content/common/frame_messages.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/common/content_export.h"
@@ skipping 625 matching lines @@
 
 // PlzNavigate
 // Tells the renderer that a navigation failed with the error code |error_code|
 // and that the renderer should display an appropriate error page.
 IPC_MESSAGE_ROUTED4(FrameMsg_FailedNavigation,
                     content::CommonNavigationParams,  /* common_params */
                     content::RequestNavigationParams, /* request_params */
                     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,
                     std::set<GURL> /* origin_whitelist */)
 #endif  // defined(ENABLE_PLUGINS)
 
 // -----------------------------------------------------------------------------
 // Messages sent from the renderer to the browser.
 
 // Blink and JavaScript error messages to log to the console
@@ skipping 359 matching lines @@
 
 // Dispatch a load event for this frame in the iframe element of an
 // out-of-process parent frame.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DispatchLoad)
 
 // Sent to the browser from a frame proxy to post a message to the frame's
 // active renderer.
 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.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif