Make it possible to configure synthetic delays through Devtools

content/browser/devtools/devtools_protocol_constants.h

 // Copyright (c) 2013 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.
 
 #ifndef CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_CONSTANTSH_
 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_CONSTANTSH_
 
 // The constants in this file should be used instead manually constructing
 // strings passed to and from DevTools protocol.
 //
@@ skipping 174 matching lines @@
 
   namespace tracingComplete {
     extern const char kName[];
   }
 
   namespace dataCollected {
     extern const char kName[];
     extern const char kValue[];
   }
 
+  namespace configureSyntheticDelays {
+    extern const char kName[];
+    extern const char kDelays[];
+  }
+
+  namespace configureSyntheticDelaysComplete {
+    extern const char kName[];
+  }
+
 }  // Tracing
 
 namespace Worker {
 
   namespace disconnectedFromWorker {
     extern const char kName[];
   }  // disconnectedFromWorker
 
 }  // Worker
 
 
 namespace SystemInfo {
   extern const char kName[];
 
 namespace getInfo {
   extern const char kName[];
 }  // getInfo
 }  // SystemInfo
 
 }  // devtools
 }  // content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_CONSTANTSH_