Remove NPAPI from browser and utility

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index e1069a29d07debb43ebf242b7f2dafd56b94dac0..34bb2aa93a6cb9beaab082e9da0c2a701246ae72 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -1127,18 +1127,6 @@ IPC_SYNC_MESSAGE_CONTROL4_3(FrameHostMsg_GetPluginInfo,
 IPC_MESSAGE_ROUTED1(FrameHostMsg_PluginContentOriginAllowed,
                     url::Origin /* content_origin */)
 
-// 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 */)
-
 // A renderer sends this to the browser process when it wants to create a ppapi
 // plugin.  The browser will create the plugin process if necessary, and will
 // return a handle to the channel on success.