Remove prefixed Resource Timing buffer management API

third_party/WebKit/Source/core/frame/Deprecation.cpp

 // Copyright 2016 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 "core/frame/Deprecation.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/FrameHost.h"
@@ skipping 339 matching lines @@
     case UseCounter::CSSDeepCombinator:
       return "/deep/ combinator is deprecated. See "
              "https://www.chromestatus.com/features/6750456638341120 for more "
              "details.";
 
     case UseCounter::CSSSelectorPseudoShadow:
       return "::shadow pseudo-element is deprecated. See "
              "https://www.chromestatus.com/features/6750456638341120 for more "
              "details.";
 
-    case UseCounter::PrefixedPerformanceClearResourceTimings:
-      return replacedBy("'Performance.webkitClearResourceTimings'",
-                        "'Performance.clearResourceTimings'");
-
-    case UseCounter::PrefixedPerformanceSetResourceTimingBufferSize:
-      return replacedBy("'Performance.webkitSetResourceTimingBufferSize'",
-                        "'Performance.setResourceTimingBufferSize'");
-
-    case UseCounter::PrefixedPerformanceResourceTimingBufferFull:
-      return replacedBy("'Performance.onwebkitresourcetimingbufferfull'",
-                        "'Performance.onresourcetimingbufferfull'");
-
     case UseCounter::EncryptedMediaAllSelectedContentTypesMissingCodecs:
       return String::format(
           "EME requires that contentType strings accepted by "
           "requestMediaKeySystemAccess() include codecs. Non-standard support "
           "for contentType strings without codecs will be removed in %s. "
           "Please specify the desired codec(s) as part of the contentType.",
           milestoneString(M58));
 
     case UseCounter::EncryptedMediaCapabilityNotProvided:
       return String::format(
@@ skipping 24 matching lines @@
           "redirected response. This will result in an error in %s.",
           milestoneString(M59));
 
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();
   }
 }
 
 }  // namespace blink