Browser Plugin: Implement BrowserPluginObserver.

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 118 matching lines @@
 
 // -----------------------------------------------------------------------------
 // These messages are from the embedder to the browser process.
 
 // This message is sent to the browser process to request an instance ID.
 // |request_id| is used by BrowserPluginEmbedder to route the response back
 // to its origin.
 IPC_MESSAGE_ROUTED1(BrowserPluginHostMsg_AllocateInstanceID,
                     int /* request_id */)
 
+// Used by the embedder process to forward messages to
+// BrowserPluginGuestObservers.
+IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_ForwardMessage,
+                    int /* instance_id */,
+                    IPC::Message /* message */)
+
 // This message is sent to the browser process to enable or disable autosize
 // mode.
 IPC_MESSAGE_ROUTED3(
     BrowserPluginHostMsg_SetAutoSize,
     int /* instance_id */,
     BrowserPluginHostMsg_AutoSize_Params /* auto_size_params */,
     BrowserPluginHostMsg_ResizeGuest_Params /* resize_guest_params */)
 
 
 // This message is sent to the browser process to create the browser plugin
@@ skipping 116 matching lines @@
 // -----------------------------------------------------------------------------
 // These messages are from the browser process to the embedder.
 
 // This message is sent from the browser process to the embedder render process
 // in response to a request to allocate an instance ID. The |request_id| is used
 // to route the response to the requestor.
 IPC_MESSAGE_ROUTED2(BrowserPluginMsg_AllocateInstanceID_ACK,
                     int /* request_id */,
                     int /* instance_id */)
 
+// Used by the browser process to forward messages to BrowserPluginObservers.
+IPC_MESSAGE_ROUTED2(BrowserPluginMsg_ForwardMessage,
+                    int /* instance_id */,
+                    IPC::Message /* message */)
+
 // Once the swapped out guest RenderView has been created in the embedder render
 // process, the browser process informs the embedder of its routing ID.
 IPC_MESSAGE_CONTROL2(BrowserPluginMsg_GuestContentWindowReady,
                      int /* instance_id */,
                      int /* source_routing_id */)
 
 // When the guest begins to load a page, the browser process informs the
 // embedder through the BrowserPluginMsg_LoadStart message.
 IPC_MESSAGE_CONTROL3(BrowserPluginMsg_LoadStart,
                      int /* instance_id */,
@@ skipping 95 matching lines @@
                      int /* route_id */,
                      int /* gpu_host_id */)
 
 // When the guest requests permission, the browser process forwards this
 // request to the embeddder through this message.
 IPC_MESSAGE_CONTROL4(BrowserPluginMsg_RequestPermission,
                      int /* instance_id */,
                      BrowserPluginPermissionType /* permission_type */,
                      int /* request_id */,
                      DictionaryValue /* request_info */)