Move UtilityProcessHost to content and move the message sending/dispatching to the clients. This...

content/common/utility_messages.h

+// Copyright (c) 2011 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.
+
+// Multiply-included message file, so no include guard.
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "content/common/common_param_traits.h"
+#include "content/common/indexed_db_key.h"
+#include "content/common/indexed_db_param_traits.h"
+#include "content/common/serialized_script_value.h"
+#include "ipc/ipc_message_macros.h"
+
+#define IPC_MESSAGE_START UtilityMsgStart
+
+//------------------------------------------------------------------------------
+// Utility process messages:
+// These are messages from the browser to the utility process.
+
+// Tell the utility process to extract the given IDBKeyPath from the
+// SerializedScriptValue vector and reply with the corresponding IDBKeys.
+IPC_MESSAGE_CONTROL3(UtilityMsg_IDBKeysFromValuesAndKeyPath,
+                     int,     // id
+                     std::vector<SerializedScriptValue>,
+                     string16)  // IDBKeyPath
+
+IPC_MESSAGE_CONTROL3(UtilityMsg_InjectIDBKey,
+                     IndexedDBKey /* key */,
+                     SerializedScriptValue /* value */,
+                     string16 /* key path*/)
+
+// Tells the utility process that it's running in batch mode.
+IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Started)
+
+// Tells the utility process that it can shutdown.
+IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Finished)
+
+
+//------------------------------------------------------------------------------
+// Utility process host messages:
+// These are messages from the utility process to the browser.
+
+// Reply when the utility process has succeeded in obtaining the value for
+// IDBKeyPath.
+IPC_MESSAGE_CONTROL2(UtilityHostMsg_IDBKeysFromValuesAndKeyPath_Succeeded,
+                     int /* id */,
+                     std::vector<IndexedDBKey> /* value */)
+
+// Reply when the utility process has failed in obtaining the value for
+// IDBKeyPath.
+IPC_MESSAGE_CONTROL1(UtilityHostMsg_IDBKeysFromValuesAndKeyPath_Failed,
+                     int /* id */)
+
+// Reply when the utility process has finished injecting an IDBKey into
+// a SerializedScriptValue.
+IPC_MESSAGE_CONTROL1(UtilityHostMsg_InjectIDBKey_Finished,
+                     SerializedScriptValue /* new value */)