Move more of the plugin code in the renderer to use RenderFrame instead of RenderView.

content/common/frame_messages.h

 // Copyright 2013 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 interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "content/common/content_export.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
@@ skipping 33 matching lines @@
                     GURL /* url */)
 
 // Sent to the browser when the renderer detects it is blocked on a pepper
 // plugin message for too long. This is also sent when it becomes unhung
 // (according to the value of is_hung). The browser can give the user the
 // option of killing the plugin.
 IPC_MESSAGE_ROUTED3(FrameHostMsg_PepperPluginHung,
                     int /* plugin_child_id */,
                     base::FilePath /* path */,
                     bool /* is_hung */)
+
+// Return information about a plugin for the given URL and MIME
+// type. If there is no matching plugin, |found| is false.
+// |actual_mime_type| is the actual mime type supported by the
+// found plugin.
+IPC_SYNC_MESSAGE_CONTROL4_3(FrameHostMsg_GetPluginInfo,
+                            int /* render_frame_id */,
+                            GURL /* url */,
+                            GURL /* page_url */,
+                            std::string /* mime_type */,
+                            bool /* found */,
+                            content::WebPluginInfo /* plugin info */,
+                            std::string /* actual_mime_type */)
+
+// A renderer sends this to the browser process when it wants to
+// create a plugin.  The browser will create the plugin process if
+// necessary, and will return a handle to the channel on success.
+// On error an empty string is returned.
+IPC_SYNC_MESSAGE_CONTROL4_2(FrameHostMsg_OpenChannelToPlugin,
+                            int /* render_frame_id */,
+                            GURL /* url */,
+                            GURL /* page_url */,
+                            std::string /* mime_type */,
+                            IPC::ChannelHandle /* channel_handle */,
+                            content::WebPluginInfo /* info */)