Browser Plugin: Remove MapInstance from BrowserPluginHost + More cross-process navigation work

content/common/browser_plugin_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included message header, no traditional include guard.
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/process.h"
@@ skipping 36 matching lines @@
 //    instance within an embedder.
 //    This identifier exists prior to the existence of the routing ID and the
 //    PP_Instance identifier.
 // The purpose of this message is to tell the browser to map a PP_Instance
 // identifier to BrowserPlugin identifier.
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_MapInstance,
                     int /* container_id */,
                     PP_Instance /* instance */)
 
 // -----------------------------------------------------------------------------
-// These messages are from the browser process to the guest renderer.
+// These messages are from the embedder render process to the guest render
+// process.
 
-IPC_MESSAGE_CONTROL2(BrowserPluginMsg_CompleteNavigation,
-                     int /* guest_routing_id */,
-                     PP_Instance /* instance */)
+IPC_MESSAGE_CONTROL2(BrowserPluginMsg_GuestReady,
+                     PP_Instance /* instance */,
+                     int /* embedder_container_id */)
 
 // -----------------------------------------------------------------------------
 // These messages are from the guest renderer to the browser process
 
 IPC_MESSAGE_ROUTED1(BrowserPluginHostMsg_ConnectToChannel,
                     IPC::ChannelHandle /* handle */)
 
 // A embedder sends this message to the browser when it wants
 // to resize a guest plugin container so that the guest is relaid out
 // according to the new size.
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_ResizeGuest,
                     int32, /* width */
                     int32  /* height */)
 
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_NavigateFromGuest,
                     PP_Instance /* instance */,
                     std::string /* src */)
 
 // -----------------------------------------------------------------------------
 // These messages are from the browser process to the embedder.
 
 // A guest instance is ready to be placed.
 IPC_MESSAGE_CONTROL3(BrowserPluginMsg_LoadGuest,
                      int /* instance id */,
                      int /* guest_process_id */,
                      IPC::ChannelHandle /* channel_handle */)