Create core/html/media/ and move auxiliary media files in it.

third_party/WebKit/Source/core/html/AutoplayUmaHelper.h

Index: third_party/WebKit/Source/core/html/AutoplayUmaHelper.h
diff --git a/third_party/WebKit/Source/core/html/AutoplayUmaHelper.h b/third_party/WebKit/Source/core/html/AutoplayUmaHelper.h
deleted file mode 100644
index 82130ef27566f342d2e972181b0c85adeeedc277..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/html/AutoplayUmaHelper.h
+++ /dev/null
@@ -1,149 +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.
-
-#ifndef AutoplayUmaHelper_h
-#define AutoplayUmaHelper_h
-
-#include "core/CoreExport.h"
-#include "core/dom/ContextLifecycleObserver.h"
-#include "core/events/EventListener.h"
-#include "platform/heap/Handle.h"
-
-#include <set>
-
-namespace blink {
-
-// These values are used for histograms. Do not reorder.
-enum class AutoplaySource {
-  // Autoplay comes from HTMLMediaElement `autoplay` attribute.
-  Attribute = 0,
-  // Autoplay comes from `play()` method.
-  Method = 1,
-  // Used for checking dual source.
-  NumberOfSources = 2,
-  // Both sources are used.
-  DualSource = 2,
-  // This enum value must be last.
-  NumberOfUmaSources = 3,
-};
-
-// These values are used for histograms. Do not reorder.
-enum class AutoplayUnmuteActionStatus {
-  Failure = 0,
-  Success = 1,
-  NumberOfStatus = 2,
-};
-
-// These values are used for histograms. Do not reorder.
-enum AutoplayBlockedReason {
-  AutoplayBlockedReasonDataSaver = 0,
-  AutoplayBlockedReasonSetting = 1,
-  AutoplayBlockedReasonDataSaverAndSetting = 2,
-  // Keey at the end.
-  AutoplayBlockedReasonMax = 3
-};
-
-enum class CrossOriginAutoplayResult {
-  AutoplayAllowed = 0,
-  AutoplayBlocked = 1,
-  PlayedWithGesture = 2,
-  UserPaused = 3,
-  // Keep at the end.
-  NumberOfResults = 4,
-};
-
-class Document;
-class ElementVisibilityObserver;
-class HTMLMediaElement;
-
-class CORE_EXPORT AutoplayUmaHelper : public EventListener,
-                                      public ContextLifecycleObserver {
-  USING_GARBAGE_COLLECTED_MIXIN(AutoplayUmaHelper);
-
- public:
-  static AutoplayUmaHelper* create(HTMLMediaElement*);
-
-  ~AutoplayUmaHelper();
-
-  bool operator==(const EventListener&) const override;
-
-  void contextDestroyed(ExecutionContext*) override;
-
-  void onAutoplayInitiated(AutoplaySource);
-
-  void recordCrossOriginAutoplayResult(CrossOriginAutoplayResult);
-  void recordAutoplayUnmuteStatus(AutoplayUnmuteActionStatus);
-
-  void didMoveToNewDocument(Document& oldDocument);
-
-  bool isVisible() const { return m_isVisible; }
-
-  bool hasSource() const { return !m_sources.empty(); }
-
-  DECLARE_VIRTUAL_TRACE();
-
- private:
-  friend class MockAutoplayUmaHelper;
-
-  explicit AutoplayUmaHelper(HTMLMediaElement*);
-  void handleEvent(ExecutionContext*, Event*) override;
-  void handlePlayingEvent();
-  void handlePauseEvent();
-  virtual void handleContextDestroyed();  // Make virtual for testing.
-
-  void maybeUnregisterContextDestroyedObserver();
-  void maybeUnregisterMediaElementPauseListener();
-
-  void maybeStartRecordingMutedVideoPlayMethodBecomeVisible();
-  void maybeStopRecordingMutedVideoPlayMethodBecomeVisible(bool isVisible);
-
-  void maybeStartRecordingMutedVideoOffscreenDuration();
-  void maybeStopRecordingMutedVideoOffscreenDuration();
-
-  void maybeRecordUserPausedAutoplayingCrossOriginVideo();
-
-  void onVisibilityChangedForMutedVideoOffscreenDuration(bool isVisibile);
-  void onVisibilityChangedForMutedVideoPlayMethodBecomeVisible(bool isVisible);
-
-  bool shouldListenToContextDestroyed() const;
-  bool shouldRecordUserPausedAutoplayingCrossOriginVideo() const;
-
-  // The autoplay sources.
-  std::set<AutoplaySource> m_sources;
-
-  // The media element this UMA helper is attached to. |m_element| owns |this|.
-  Member<HTMLMediaElement> m_element;
-
-  // The observer is used to observe whether a muted video autoplaying by play()
-  // method become visible at some point.
-  // The UMA is pending for recording as long as this observer is non-null.
-  Member<ElementVisibilityObserver> m_mutedVideoPlayMethodVisibilityObserver;
-
-  // -----------------------------------------------------------------------
-  // Variables used for recording the duration of autoplay muted video playing
-  // offscreen.  The variables are valid when
-  // |m_autoplayOffscrenVisibilityObserver| is non-null.
-  // The recording stops whenever the playback pauses or the page is unloaded.
-
-  // The starting time of autoplaying muted video.
-  int64_t m_mutedVideoAutoplayOffscreenStartTimeMS;
-
-  // The duration an autoplaying muted video has been in offscreen.
-  int64_t m_mutedVideoAutoplayOffscreenDurationMS;
-
-  // Whether an autoplaying muted video is visible.
-  bool m_isVisible;
-
-  std::set<CrossOriginAutoplayResult> m_recordedCrossOriginAutoplayResults;
-
-  // The observer is used to observer an autoplaying muted video changing it's
-  // visibility, which is used for offscreen duration UMA.  The UMA is pending
-  // for recording as long as this observer is non-null.
-  Member<ElementVisibilityObserver>
-      m_mutedVideoOffscreenDurationVisibilityObserver;
-};
-
-}  // namespace blink
-
-#endif  // AutoplayUmaHelper_h