Convert tabs, windows, and extension APIs to feature system.

chrome/common/extensions/extension_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.
 
 // IPC messages for extensions.
 // Multiply-included message file, hence no include guard.
 
 #include "base/shared_memory.h"
 #include "base/values.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 21 matching lines @@
 
   // URL of the frame the request was sent from. This isn't necessarily an
   // extension url. Extension requests can also originate from content scripts,
   // in which case extension_id will indicate the ID of the associated
   // extension. Or, they can originate from hosted apps or normal web pages.
   IPC_STRUCT_MEMBER(GURL, source_url)
 
   // Web security origin of the frame the request was sent from.
   IPC_STRUCT_MEMBER(string16, source_origin)
 
+  // The Feature::Context type this request came from.
+  IPC_STRUCT_MEMBER(int, source_context_type)
+
   // Unique request id to match requests and responses.
   IPC_STRUCT_MEMBER(int, request_id)
 
   // True if request has a callback specified.
   IPC_STRUCT_MEMBER(bool, has_callback)
 
   // True if request is executed in response to an explicit user gesture.
   IPC_STRUCT_MEMBER(bool, user_gesture)
 IPC_STRUCT_END()
 
@@ skipping 241 matching lines @@
 IPC_MESSAGE_ROUTED1(ExtensionHostMsg_Request,
                     ExtensionHostMsg_Request_Params)
 
 // A renderer sends this message when an extension process starts an API
 // request. The browser will always respond with a ExtensionMsg_Response.
 IPC_MESSAGE_CONTROL2(ExtensionHostMsg_RequestForIOThread,
                      int /* routing_id */,
                      ExtensionHostMsg_Request_Params)
 
 // Notify the browser that the given extension added a listener to an event.
-IPC_MESSAGE_CONTROL2(ExtensionHostMsg_AddListener,
+IPC_MESSAGE_CONTROL3(ExtensionHostMsg_AddListener,
                      std::string /* extension_id */,
-                     std::string /* name */)
+                     std::string /* name */,
+                     int /* source_context_type */)
 
 // Notify the browser that the given extension removed a listener from an
 // event.
 IPC_MESSAGE_CONTROL2(ExtensionHostMsg_RemoveListener,
                      std::string /* extension_id */,
                      std::string /* name */)
 
 // Notify the browser that the given extension added a listener to an event from
 // a lazy background page.
-IPC_MESSAGE_CONTROL2(ExtensionHostMsg_AddLazyListener,
+IPC_MESSAGE_CONTROL3(ExtensionHostMsg_AddLazyListener,
                      std::string /* extension_id */,
-                     std::string /* name */)
+                     std::string /* name */,
+                     int /* source_context_type */)
 
 // Notify the browser that the given extension is no longer interested in
 // receiving the given event from a lazy background page.
 IPC_MESSAGE_CONTROL2(ExtensionHostMsg_RemoveLazyListener,
                      std::string /* extension_id */,
                      std::string /* name */)
 
 // Notify the browser that an event has finished being dispatched.
 IPC_MESSAGE_CONTROL1(ExtensionHostMsg_ExtensionEventAck,
                      std::string /* extension_id */)
@@ skipping 86 matching lines @@
 
 // Informs the browser there is one less thing keeping the lazy background page
 // alive.
 IPC_MESSAGE_CONTROL1(ExtensionHostMsg_DecrementLazyKeepaliveCount,
                      std::string /* extension_id */)
 
 // Fetches a globally unique ID (for the lifetime of the browser) from the
 // browser process.
 IPC_SYNC_MESSAGE_CONTROL0_1(ExtensionHostMsg_GenerateUniqueID,
                             int /* unique_id */)