Move a few media controls elements into modules/media_controls/elements/.

third_party/WebKit/Source/modules/media_controls/elements/MediaControlMuteButtonElement.cpp

+// Copyright 2017 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 "modules/media_controls/elements/MediaControlMuteButtonElement.h"
+
+#include "core/InputTypeNames.h"
+#include "core/events/Event.h"
+#include "core/html/HTMLMediaElement.h"
+#include "modules/media_controls/MediaControlsImpl.h"
+#include "public/platform/Platform.h"
+
+namespace blink {
+
+MediaControlMuteButtonElement::MediaControlMuteButtonElement(
+    MediaControlsImpl& media_controls)
+    : MediaControlInputElement(media_controls, kMediaMuteButton) {
+  EnsureUserAgentShadowRoot();
+  setType(InputTypeNames::button);
+  SetShadowPseudoId(AtomicString("-webkit-media-controls-mute-button"));
+}
+
+bool MediaControlMuteButtonElement::WillRespondToMouseClickEvents() {
+  return true;
+}
+
+void MediaControlMuteButtonElement::UpdateDisplayType() {
+  // TODO(mlamouri): checking for volume == 0 because the mute button will look
+  // 'muted' when the volume is 0 even if the element is not muted. This allows
+  // the painting and the display type to actually match.
+  SetDisplayType((MediaElement().muted() || MediaElement().volume() == 0)
+                     ? kMediaUnMuteButton
+                     : kMediaMuteButton);
+  UpdateOverflowString();
+}
+
+WebLocalizedString::Name
+MediaControlMuteButtonElement::GetOverflowStringName() {
+  if (MediaElement().muted())
+    return WebLocalizedString::kOverflowMenuUnmute;
+  return WebLocalizedString::kOverflowMenuMute;
+}
+
+bool MediaControlMuteButtonElement::HasOverflowButton() {
+  return true;
+}
+
+void MediaControlMuteButtonElement::DefaultEventHandler(Event* event) {
+  if (event->type() == EventTypeNames::click) {
+    if (MediaElement().muted()) {
+      Platform::Current()->RecordAction(
+          UserMetricsAction("Media.Controls.Unmute"));
+    } else {
+      Platform::Current()->RecordAction(
+          UserMetricsAction("Media.Controls.Mute"));
+    }
+
+    MediaElement().setMuted(!MediaElement().muted());
+    event->SetDefaultHandled();
+  }
+
+  MediaControlInputElement::DefaultEventHandler(event);
+}
+
+}  // namespace blink