Browser plugin: Implement loadRedirect event.

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 129 matching lines @@
 // If the guest fails to commit a page load then it will inform the
 // embedder through the BrowserPluginMsg_LoadAbort. A description
 // of the error will be stored in |type|.  The list of known error
 // types can be found in net/base/net_error_list.h.
 IPC_MESSAGE_CONTROL4(BrowserPluginMsg_LoadAbort,
                      int /* instance_id */,
                      GURL /* url */,
                      bool /* is_top_level */,
                      std::string /* type */)
 
+// When the guest redirects a navigation, the browser process informs the
+// embedder through the BrowserPluginMsg_LoadRedirect message.
+IPC_MESSAGE_CONTROL4(BrowserPluginMsg_LoadRedirect,
+                     int /* instance_id */,
+                     GURL /* old_url */,
+                     GURL /* new_url */,
+                     bool /* is_top_level */)
+
 // When the guest navigates, the browser process informs the embedder through
 // the BrowserPluginMsg_DidNavigate message.
 IPC_MESSAGE_CONTROL3(BrowserPluginMsg_DidNavigate,
                      int /* instance_id */,
                      GURL /* url */,
                      int /* process_id */)
 
 // When the guest crashes, the browser process informs the embedder through this
 // message.
 IPC_MESSAGE_CONTROL1(BrowserPluginMsg_GuestCrashed,
@@ skipping 45 matching lines @@
 IPC_MESSAGE_CONTROL2(BrowserPluginMsg_ShouldAcceptTouchEvents,
                      int /* instance_id */,
                      bool /* accept */)
 
 // The guest has damage it wants to convey to the embedder so that it can
 // update its backing store.
 IPC_MESSAGE_CONTROL3(BrowserPluginMsg_UpdateRect,
                      int /* instance_id */,
                      int /* message_id */,
                      BrowserPluginMsg_UpdateRect_Params)