Update extension events, routing, and delivery to use user gesture.

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 158 matching lines @@
                     std::string /* response */,
                     std::string /* error */)
 
 // This message is optionally routed.  If used as a control message, it
 // will call a javascript function in every registered context in the
 // target process.  If routed, it will be restricted to the contexts that
 // are part of the target RenderView.
 // If |extension_id| is non-empty, the function will be invoked only in
 // contexts owned by the extension. |args| is a list of primitive Value types
 // that are passed to the function.
-IPC_MESSAGE_ROUTED4(ExtensionMsg_MessageInvoke,
+IPC_MESSAGE_ROUTED5(ExtensionMsg_MessageInvoke,
                     std::string /* extension_id */,
                     std::string /* function_name */,
                     ListValue /* args */,
-                    GURL /* event URL */)
+                    GURL /* event URL */,
+                    bool /* delivered as part of a user gesture */)
 
 // Tell the renderer process all known extension function names.
 IPC_MESSAGE_CONTROL1(ExtensionMsg_SetFunctionNames,
                      std::vector<std::string>)
 
 // Marks an extension as 'active' in an extension process. 'Active' extensions
 // have more privileges than other extension content that might end up running
 // in the process (e.g. because of iframes or content scripts).
 IPC_MESSAGE_CONTROL1(ExtensionMsg_ActivateExtension,
                      std::string /* extension_id */)
@@ skipping 184 matching lines @@
 // Response to the renderer for the above message.
 IPC_MESSAGE_ROUTED3(ExtensionMsg_GetAppNotifyChannelResponse,
                     std::string /* channel_id */,
                     std::string /* error */,
                     int32 /* callback_id */)
 
 // Deliver a message sent with ExtensionHostMsg_PostMessage.
 IPC_MESSAGE_ROUTED2(ExtensionMsg_DeliverMessage,
                     int /* target_port_id */,
                     std::string /* message */)