Hooking MHTML generation to the browser.

content/common/view_messages.h

 // Copyright (c) 2011 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 page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/common_param_traits.h"
@@ skipping 1177 matching lines @@
 // a generated by a user action or because a constrained popup got turned
 // into a full window).
 IPC_MESSAGE_ROUTED0(ViewMsg_DisassociateFromPopupCount)
 
 // Asks the renderer to send back FPS.
 IPC_MESSAGE_ROUTED0(ViewMsg_GetFPS)
 
 // Used to instruct the RenderView to go into "view source" mode.
 IPC_MESSAGE_ROUTED0(ViewMsg_EnableViewSourceMode)
 
+// Instructs the renderer to save the current page to MHTML.
+IPC_MESSAGE_ROUTED2(ViewMsg_SavePageAsMHTML,
+                    int /* job_id */,
+                    IPC::PlatformFileForTransit /* file handle */)
+
 // Messages sent from the renderer to the browser.
 
 // Sent by the renderer when it is creating a new window.  The browser creates
 // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
 // MSG_ROUTING_NONE, the view couldn't be created.
 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_CreateWindow,
                             ViewHostMsg_CreateWindow_Params,
                             int /* route_id */,
                             int64 /* cloned_session_storage_namespace_id */)
 
@@ skipping 748 matching lines @@
 
 // Send back a string to be recorded by UserMetrics.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_UserMetricsRecordAction,
                      std::string /* action */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)
 
+// Notifies the browser that the page was or was not saved as MHTML.
+IPC_MESSAGE_ROUTED2(ViewHostMsg_SavedPageAsMHTML,
+                    int /* job_id*/,
+                    bool /* success */)