Move extension_messages.h to extensions/common.

chrome/common/extensions/chrome_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.
+
+// Chrome-specific IPC messages for extensions.
+// Extension-related messages that aren't specific to Chrome live in
+// extensions/common/extension_messages.h.
+//
+// Multiply-included message file, hence no include guard.
+
+#include "chrome/common/web_application_info.h"
+#include "ipc/ipc_message_macros.h"
+
+#define IPC_MESSAGE_START ChromeExtensionMsgStart
+
+IPC_STRUCT_TRAITS_BEGIN(WebApplicationInfo::IconInfo)
+  IPC_STRUCT_TRAITS_MEMBER(url)
+  IPC_STRUCT_TRAITS_MEMBER(width)
+  IPC_STRUCT_TRAITS_MEMBER(height)
+  IPC_STRUCT_TRAITS_MEMBER(data)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(WebApplicationInfo)
+  IPC_STRUCT_TRAITS_MEMBER(title)
+  IPC_STRUCT_TRAITS_MEMBER(description)
+  IPC_STRUCT_TRAITS_MEMBER(app_url)
+  IPC_STRUCT_TRAITS_MEMBER(icons)
+IPC_STRUCT_TRAITS_END()
+
+// Messages sent from the browser to the renderer.
+
+// Requests application info for the page. The renderer responds back with
+// ExtensionHostMsg_DidGetApplicationInfo.
+IPC_MESSAGE_ROUTED1(ChromeExtensionMsg_GetApplicationInfo,
+                    int32 /* page_id */)
+
+// Messages sent from the renderer to the browser.
+
+IPC_MESSAGE_ROUTED2(ChromeExtensionHostMsg_DidGetApplicationInfo,
+                    int32 /* page_id */,
+                    WebApplicationInfo)