Revert r70896 to move speech input back behind a flag.

chrome/common/render_messages_internal.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.
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "build/build_config.h"
@@ skipping 1062 matching lines @@
 // A classification model for client-side phishing detection.
 // The given file contains an encoded safe_browsing::ClientSideModel
 // protocol buffer.
 IPC_MESSAGE_CONTROL1(ViewMsg_SetPhishingModel,
                      IPC::PlatformFileForTransit /* model_file */)
 
 // External popup menus.
 IPC_MESSAGE_ROUTED1(ViewMsg_SelectPopupMenuItem,
                     int /* selected index, -1 means no selection */)
 
+// Indicate whether speech input API is enabled or not.
+IPC_MESSAGE_CONTROL1(ViewMsg_SpeechInput_SetFeatureEnabled,
+                     bool /* enabled */)
+
 // The response to ViewHostMsg_PepperConnectTcp(Address).
 IPC_MESSAGE_ROUTED4(ViewMsg_PepperConnectTcpACK,
                     int /* request_id */,
                     IPC::PlatformFileForTransit /* socket */,
                     PP_Flash_NetAddress /* local_addr */,
                     PP_Flash_NetAddress /* remote_addr */)
 
 // Sent in response to a ViewHostMsg_ContextMenu to let the renderer know that
 // the menu has been closed.
 IPC_MESSAGE_ROUTED0(ViewMsg_ContextMenuClosed)
@@ skipping 1537 matching lines @@
                      int /* request_id */,
                      PP_Flash_NetAddress /* addr */)
 
 // JavaScript related messages -----------------------------------------------
 
 // Notify the JavaScript engine in the render to change its parameters
 // while performing stress testing.
 IPC_MESSAGE_ROUTED2(ViewMsg_JavaScriptStressTestControl,
                     int /* cmd */,
                     int /* param */)