Include viewport visibility checks for autoplay experiment.

third_party/WebKit/Source/core/html/AutoplayExperimentConfig.cpp

Index: third_party/WebKit/Source/core/html/AutoplayExperimentConfig.cpp
diff --git a/third_party/WebKit/Source/core/html/AutoplayExperimentConfig.cpp b/third_party/WebKit/Source/core/html/AutoplayExperimentConfig.cpp
deleted file mode 100644
index 8af7d9fb1b9c8b70131707e39e787cd88ef52db9..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/html/AutoplayExperimentConfig.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2015 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 "config.h"
-#include "core/html/AutoplayExperimentConfig.h"
-
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-AutoplayExperimentConfig::Mode AutoplayExperimentConfig::fromString(const String& mode)
-{
-    AutoplayExperimentConfig::Mode value = AutoplayExperimentConfig::Mode::Off;
-    if (mode.contains("-forvideo"))
-        value |= AutoplayExperimentConfig::Mode::ForVideo;
-    if (mode.contains("-foraudio"))
-        value |= AutoplayExperimentConfig::Mode::ForAudio;
-    if (mode.contains("-ifmuted"))
-        value |= AutoplayExperimentConfig::Mode::IfMuted;
-    if (mode.contains("-ifmobile"))
-        value |= AutoplayExperimentConfig::Mode::IfMobile;
-    if (mode.contains("-playmuted"))
-        value |= AutoplayExperimentConfig::Mode::PlayMuted;
-
-    return value;
-}
-
-} // namespace blink