BASELINE: Update Chromium to 67.0.3396.47

Change-Id: Idcb1341782e417561a2473eeecc82642dafda5b7
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 74 insertions, 0 deletions

diff --git a/chromium/third_party/blink/renderer/modules/webaudio/audio_worklet.h b/chromium/third_party/blink/renderer/modules/webaudio/audio_worklet.h
new file mode 100644
index 00000000000..98b6c4672da
--- /dev/null
+++ b/chromium/third_party/blink/renderer/modules/webaudio/audio_worklet.h
@@ -0,0 +1,74 @@
+// 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 THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_WORKLET_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_WORKLET_H_
+
+#include "third_party/blink/renderer/core/workers/worklet.h"
+#include "third_party/blink/renderer/modules/modules_export.h"
+#include "third_party/blink/renderer/platform/heap/handle.h"
+
+namespace blink {
+
+class AudioWorkletHandler;
+class AudioWorkletMessagingProxy;
+class BaseAudioContext;
+class CrossThreadAudioParamInfo;
+class MessagePortChannel;
+class SerializedScriptValue;
+
+class MODULES_EXPORT AudioWorklet final : public Worklet {
+  DEFINE_WRAPPERTYPEINFO();
+  USING_GARBAGE_COLLECTED_MIXIN(AudioWorklet);
+  WTF_MAKE_NONCOPYABLE(AudioWorklet);
+
+ public:
+  // When the AudioWorklet runtime flag is not enabled, this constructor returns
+  // |nullptr|.
+  static AudioWorklet* Create(BaseAudioContext*);
+
+  ~AudioWorklet() = default;
+
+  void CreateProcessor(AudioWorkletHandler*,
+                       MessagePortChannel,
+                       scoped_refptr<SerializedScriptValue> node_options);
+
+  // Invoked by AudioWorkletMessagingProxy. Notifies |context_| when
+  // AudioWorkletGlobalScope finishes the first script evaluation and is ready
+  // for the worklet operation. Can be used for other post-evaluation tasks
+  // in AudioWorklet or BaseAudioContext.
+  void NotifyGlobalScopeIsUpdated();
+
+  BaseAudioContext* GetBaseAudioContext() const;
+
+  // Returns |nullptr| if there is no active WorkletGlobalScope().
+  AudioWorkletMessagingProxy* GetMessagingProxy();
+
+  const Vector<CrossThreadAudioParamInfo> GetParamInfoListForProcessor(
+      const String& name);
+
+  bool IsProcessorRegistered(const String& name);
+
+  // Returns |true| when a AudioWorkletMessagingProxy and a WorkletBackingThread
+  // are ready.
+  bool IsReady();
+
+  void Trace(blink::Visitor*) override;
+
+ private:
+  explicit AudioWorklet(BaseAudioContext*);
+
+  // Implements Worklet
+  bool NeedsToCreateGlobalScope() final;
+  WorkletGlobalScopeProxy* CreateGlobalScope() final;
+
+  // To catch the first global scope update and notify the context.
+  bool worklet_started_ = false;
+
+  Member<BaseAudioContext> context_;
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_WORKLET_H_