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diff --git a/chromium/third_party/blink/renderer/platform/widget/frame_widget.h b/chromium/third_party/blink/renderer/platform/widget/frame_widget.h
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+++ b/chromium/third_party/blink/renderer/platform/widget/frame_widget.h
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+// Copyright 2020 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_PLATFORM_WIDGET_FRAME_WIDGET_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WIDGET_FRAME_WIDGET_H_
+
+#include "third_party/blink/public/web/web_swap_result.h"
+#include "third_party/blink/public/web/web_widget_client.h"
+#include "third_party/blink/renderer/platform/platform_export.h"
+
+namespace cc {
+class AnimationHost;
+class Layer;
+class PaintImage;
+}  // namespace cc
+
+namespace blink {
+
+// In interface exposed within Blink from local root frames that provides
+// local-root specific things related to compositing and input.
+class PLATFORM_EXPORT FrameWidget {
+ public:
+  virtual ~FrameWidget();
+
+  // Returns the WebWidgetClient, which is implemented outside of blink.
+  virtual WebWidgetClient* Client() const = 0;
+
+  // Returns the compositors's AnimationHost for the widget.
+  virtual cc::AnimationHost* AnimationHost() const = 0;
+
+  // Set the browser's behavior when overscroll happens, e.g. whether to glow
+  // or navigate.
+  virtual void SetOverscrollBehavior(
+      const cc::OverscrollBehavior& overscroll_behavior) = 0;
+
+  // Posts a task with the given delay, then calls ScheduleAnimation() on the
+  // Client().
+  virtual void RequestAnimationAfterDelay(const base::TimeDelta&) = 0;
+
+  // Sets the root layer. The |layer| can be null when detaching the root layer.
+  virtual void SetRootLayer(scoped_refptr<cc::Layer> layer) = 0;
+
+  // Used to update the active selection bounds. Pass a default-constructed
+  // LayerSelection to clear it.
+  virtual void RegisterSelection(cc::LayerSelection selection) = 0;
+
+  // Image decode functionality.
+  virtual void RequestDecode(const cc::PaintImage&,
+                             base::OnceCallback<void(bool)>) = 0;
+
+  // Forwards to WebFrameWidget::NotifySwapAndPresentationTime().
+  // The |callback| will be fired when the corresponding renderer frame is
+  // submitted (still called "swapped") to the display compositor (either with
+  // DidSwap or DidNotSwap).
+  virtual void NotifySwapAndPresentationTimeInBlink(
+      WebReportTimeCallback swap_callback,
+      WebReportTimeCallback presentation_callback) = 0;
+
+  // Enable or disable BeginMainFrameNotExpected signals from the compositor,
+  // which are consumed by the blink scheduler.
+  virtual void RequestBeginMainFrameNotExpected(bool request) = 0;
+
+  // A stable numeric Id for the local root's compositor. For tracing/debugging
+  // purposes.
+  virtual int GetLayerTreeId() = 0;
+
+  // Set or get what event handlers exist in the document contained in the
+  // WebWidget in order to inform the compositor thread if it is able to handle
+  // an input event, or it needs to pass it to the main thread to be handled.
+  // The class is the type of input event, and for each class there is a
+  // properties defining if the compositor thread can handle the event.
+  virtual void SetEventListenerProperties(cc::EventListenerClass,
+                                          cc::EventListenerProperties) = 0;
+  virtual cc::EventListenerProperties EventListenerProperties(
+      cc::EventListenerClass) const = 0;
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WIDGET_FRAME_WIDGET_H_