Browser Plugin: Implement Back, Forward, and Go.

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"
 #include "content/common/content_export.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_message_utils.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "webkit/glue/webcursor.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START BrowserPluginMsgStart
 
 // Browser plugin messages
 
 // -----------------------------------------------------------------------------
 // These messages are from the embedder to the browser process.
 
+// Tells the guest to navigate to the previous entry.
+IPC_MESSAGE_ROUTED1(BrowserPluginHostMsg_Back,
+                    int /* instance_id */)
+
+// Tells the guest to navigate to the next entry.
+IPC_MESSAGE_ROUTED1(BrowserPluginHostMsg_Forward,
+                    int /* instance_id */)
+
+IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_Go,

[lazyboy, 2012/09/20 20:05:42]

Add comment for this one too.

[Fady Samuel, 2012/09/21 15:21:56]

Done.

+                    int /* instance_id */,
+                    int /* relative_index */)
+
 // Tells the guest to focus or defocus itself.
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_SetFocus,
                     int /* instance_id */,
                     bool /* enable */)
 
 // Message payload includes:
 // 1. A blob that should be cast to WebInputEvent
 // 2. An optional boolean value indicating if a RawKeyDown event is associated
 //    to a keyboard shortcut of the browser.
 IPC_SYNC_MESSAGE_ROUTED0_2(BrowserPluginHostMsg_HandleInputEvent,
@@ skipping 109 matching lines @@
 IPC_MESSAGE_CONTROL2(BrowserPluginMsg_AdvanceFocus,
                      int /* instance_id */,
                      bool /* reverse */)
 
 // 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)