input: Remove dead code.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 466 matching lines @@
   // We need to reset these flags when we want to repaint the contents of
   // browser plugin in this RWH. Resetting these flags will ensure we ignore
   // any previous pending acks that are not relevant upon repaint.
   void ResetSizeAndRepaintPendingFlags();
 
   void DetachDelegate();
 
   // Update the renderer's cache of the screen rect of the view and window.
   void SendScreenRects();
 
-  void OnBeginFrame();
-
   // Indicates whether the renderer drives the RenderWidgetHosts's size or the
   // other way around.
   bool auto_resize_enabled() { return auto_resize_enabled_; }
 
   // The minimum size of this renderer when auto-resize is enabled.
   const gfx::Size& min_size_for_auto_resize() const {
     return min_size_for_auto_resize_;
   }
 
   // The maximum size of this renderer when auto-resize is enabled.
@@ skipping 80 matching lines @@
   void RequestCompositionUpdates(bool immediate_request, bool monitor_updates);
 
   void RequestMojoCompositorFrameSink(
       cc::mojom::MojoCompositorFrameSinkRequest request,
       cc::mojom::MojoCompositorFrameSinkClientPtr client);
 
   const cc::CompositorFrameMetadata& last_frame_metadata() {
     return last_frame_metadata_;
   }
 
-  // SyntheticGestureController::Delegate:
-  void RequestBeginFrameForSynthesizedInput(
-      base::OnceClosure begin_frame_callback) override;
   bool HasGestureStopped() override;
 
   // cc::mojom::MojoCompositorFrameSink implementation.
   void SetNeedsBeginFrame(bool needs_begin_frame) override;
   void SubmitCompositorFrame(const cc::LocalSurfaceId& local_surface_id,
                              cc::CompositorFrame frame) override;
   void DidNotProduceFrame(const cc::BeginFrameAck& ack) override;
 
   // Signals that a frame with token |frame_token| was finished processing. If
   // there are any queued messages belonging to it, they will be processed.
@@ skipping 385 matching lines @@
   cc::CompositorFrameMetadata last_frame_metadata_;
 
   // Last non-zero frame token received from the renderer. Any swap messsages
   // having a token less than or equal to this value will be processed.
   uint32_t last_received_frame_token_ = 0;
 
   // List of all swap messages that their corresponding frames have not arrived.
   // Sorted by frame token.
   std::queue<std::pair<uint32_t, std::vector<IPC::Message>>> queued_messages_;
 
-  base::OnceClosure begin_frame_callback_;
-
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_