Add an extension to expose some primitives to JS for doing ...

chrome/common/render_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.
 
 #include <string>
 #include <vector>
@@ skipping 1379 matching lines @@
   IPC_MESSAGE_ROUTED1(ViewHostMsg_ShowPopup,
                       ViewHostMsg_ShowPopup_Params)
 
   // Sent as a result of a focus change in the renderer (if accessibility is
   // enabled), to notify the browser side that its accessibility focus needs to
   // change as well. Takes the id of the accessibility object that now has
   // focus.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityFocusChange,
                       int /* accessibility object id */)
 
+  // Message sent from the renderer to the browser to request that the browser
+  // close all idle sockets.  Used for debugging/testing.
+  IPC_MESSAGE_CONTROL0(ViewHostMsg_CloseIdleConnections)
+
+  // Message sent from the renderer to the browser to request that the browser
+  // close all idle sockets.  Used for debugging/testing.
+  IPC_MESSAGE_CONTROL1(ViewHostMsg_SetCacheMode,
+                       bool /* enabled */)
+
   //---------------------------------------------------------------------------
   // Utility process host messages:
   // These are messages from the utility process to the browser.  They're here
   // because we ran out of spare message types.
 
   // Reply when the utility process is done unpacking an extension.  |manifest|
   // is the parsed manifest.json file.  |images| is a list of decoded images
   // and the path to where they should be written to, relative to the
   // manifest file.
   IPC_MESSAGE_CONTROL2(UtilityHostMsg_UnpackExtension_Succeeded,
                        DictionaryValue /* manifest */,
                        std::vector<UnpackExtension_ImagePathPair> /* images */)
 
   // Reply when the utility process has failed while unpacking an extension.
   // |error_message| is a user-displayable explanation of what went wrong.
   IPC_MESSAGE_CONTROL1(UtilityHostMsg_UnpackExtension_Failed,
                        std::string /* error_message, if any */)
+
 IPC_END_MESSAGES(ViewHost)