Revert of Add deprecation message for -webkit-background-composite

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

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
deleted file mode 100644
index 0616ded235fdfe62447a83d2e2b3642b93b434c3..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-// 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/frame/FrameConsole.h"
-#include "core/frame/FrameHost.h"
-#include "core/frame/LocalFrame.h"
-#include "core/frame/UseCounter.h"
-#include "core/inspector/ConsoleMessage.h"
-
-namespace blink {
-
-Deprecation::Deprecation()
-{
-    m_cssPropertyDeprecationBits.ensureSize(lastUnresolvedCSSProperty + 1);
-    m_cssPropertyDeprecationBits.clearAll();
-}
-
-Deprecation::~Deprecation()
-{
-    m_cssPropertyDeprecationBits.clearAll();
-}
-
-void Deprecation::suppress(CSSPropertyID unresolvedProperty)
-{
-    ASSERT(unresolvedProperty >= firstCSSProperty);
-    ASSERT(unresolvedProperty <= lastUnresolvedCSSProperty);
-    m_cssPropertyDeprecationBits.quickSet(unresolvedProperty);
-}
-bool Deprecation::isSuppressed(CSSPropertyID unresolvedProperty)
-{
-    ASSERT(unresolvedProperty >= firstCSSProperty);
-    ASSERT(unresolvedProperty <= lastUnresolvedCSSProperty);
-    return m_cssPropertyDeprecationBits.quickGet(unresolvedProperty);
-}
-
-void Deprecation::warnOnDeprecatedProperties(const LocalFrame* frame, CSSPropertyID unresolvedProperty)
-{
-    FrameHost* host = frame ? frame->host() : nullptr;
-    if (!host || host->deprecation().isSuppressed(unresolvedProperty)) {
-        return;
-    }
-
-    String message = deprecationMessage(unresolvedProperty);
-    if (!message.isEmpty()) {
-        host->deprecation().suppress(unresolvedProperty);
-        frame->console().addMessage(ConsoleMessage::create(DeprecationMessageSource, WarningMessageLevel, message));
-    }
-}
-
-String Deprecation::deprecationMessage(CSSPropertyID unresolvedProperty)
-{
-    switch (unresolvedProperty) {
-    case CSSPropertyWebkitBackgroundComposite:
-        return UseCounter::willBeRemoved("'-webkit-background-composite'", 51, "6607299456008192");
-    default:
-        return emptyString();
-    }
-}
-
-} // namespace blink