DevTools: support cross-navigation instrumentation.

chrome/common/devtools_messages_internal.h

 // Copyright (c) 2009 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 // Developer tools consist of the following parts:
 //
@@ skipping 47 matching lines @@
 
 IPC_END_MESSAGES(DevToolsClient)
 
 
 //-----------------------------------------------------------------------------
 // These are messages sent from DevToolsClient to DevToolsAgent through the
 // browser.
 IPC_BEGIN_MESSAGES(DevToolsAgent)
 
   // Tells agent that there is a client host connected to it.
-  IPC_MESSAGE_CONTROL0(DevToolsAgentMsg_Attach)
+  IPC_MESSAGE_CONTROL1(DevToolsAgentMsg_Attach,
+                       std::vector<std::string> /* runtime_features */)
 
   // Tells agent that there is no longer a client host connected to it.
   IPC_MESSAGE_CONTROL0(DevToolsAgentMsg_Detach)
 
   // Sends glue-level Rpc message to the agent.
   IPC_MESSAGE_CONTROL5(DevToolsAgentMsg_RpcMessage,
                        std::string /* class_name */,
                        std::string /* method_name */,
                        std::string /* p1 */,
                        std::string /* p2 */,
                        std::string /* p3 */)
 
   // Send debugger command to the debugger agent. Debugger commands should
   // be handled on IO thread(while all other devtools messages are handled in
   // the render thread) to allow executing the commands when v8 is on a
   // breakpoint.
   IPC_MESSAGE_CONTROL1(DevToolsAgentMsg_DebuggerCommand,
                        std::string  /* command */)
 
   // Inspect element with the given coordinates.
   IPC_MESSAGE_CONTROL2(DevToolsAgentMsg_InspectElement,
                        int /* x */,
                        int /* y */)
 
   // Enables/disables the apu agent.
   IPC_MESSAGE_CONTROL1(DevToolsAgentMsg_SetApuAgentEnabled, bool /* enabled */)
 
 IPC_END_MESSAGES(DevToolsAgent)