Move Deprecation helpers into an anonymous namespace

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

 // 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.
 
 #ifndef Deprecation_h
 #define Deprecation_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/frame/UseCounter.h"
@@ skipping 25 matching lines @@
     // doesn't count the usage but only sends a console warning.
     static void countDeprecation(const LocalFrame*, UseCounter::Feature);
     static void countDeprecation(ExecutionContext*, UseCounter::Feature);
     static void countDeprecation(const Document&, UseCounter::Feature);
     // Use countDeprecationIfNotPrivateScript() instead of countDeprecation()
     // if you don't want to count metrics in private scripts. You should use
     // countDeprecationIfNotPrivateScript() in a binding layer.
     static void countDeprecationIfNotPrivateScript(v8::Isolate*, ExecutionContext*, UseCounter::Feature);
     static String deprecationMessage(UseCounter::Feature);
 
-    static String willBeRemoved(const char* feature, int milestone, const char* details);
-
 protected:
     void suppress(CSSPropertyID unresolvedProperty);
     bool isSuppressed(CSSPropertyID unresolvedProperty);
     // CSSPropertyIDs that aren't deprecated return an empty string.
     static String deprecationMessage(CSSPropertyID unresolvedProperty);
 
     BitVector m_cssPropertyDeprecationBits;
 };
 
 } // namespace blink
 
 #endif // Deprecation_h