Remove external begin frame source parameter and settings

cc/trees/layer_tree_host.h

 // 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 CC_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 65 matching lines @@
   // See swap_promise.h for how to use SwapPromise.
   virtual void QueueSwapPromise(std::unique_ptr<SwapPromise> swap_promise) = 0;
 
   // Returns the SwapPromiseManager used to create SwapPromiseMonitors for this
   // host.
   virtual SwapPromiseManager* GetSwapPromiseManager() = 0;
 
   // Sets whether the content is suitable to use Gpu Rasterization.
   virtual void SetHasGpuRasterizationTrigger(bool has_trigger) = 0;
 
-  // Visibility and CompositorFrameSink -------------------------------

[danakj, 2016/09/20 18:19:21]

Did you mean to?

[enne (OOO), 2016/09/20 18:34:26]

Ah, the rebasing on this patch was super rough.  Thanks for catching this.

-
   virtual void SetVisible(bool visible) = 0;
   virtual bool IsVisible() const = 0;
 
   // Called in response to an CompositorFrameSink request made to the client
   // using LayerTreeHostClient::RequestNewCompositorFrameSink. The client will
   // be informed of the CompositorFrameSink initialization status using
   // DidInitializaCompositorFrameSink or DidFailToInitializeCompositorFrameSink.
   // The request is completed when the host successfully initializes an
   // CompositorFrameSink.
   virtual void SetCompositorFrameSink(
@@ skipping 99 matching lines @@
   virtual void SetNextCommitWaitsForActivation() = 0;
 
   // The LayerTreeHost tracks whether the content is suitable for Gpu raster.
   // Calling this will reset it back to not suitable state.
   virtual void ResetGpuRasterizationTracking() = 0;
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_