cc: Rename LayerTreeHost to LayerTreeHostInProcess.

cc/trees/layer_tree_host_interface.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_INTERFACE_H_
-#define CC_TREES_LAYER_TREE_HOST_INTERFACE_H_
-
-#include "base/macros.h"
-#include "cc/base/cc_export.h"
-#include "cc/debug/micro_benchmark.h"
-#include "cc/input/top_controls_state.h"
-
-namespace base {
-class TimeTicks;
-}  // namespace base
-
-namespace gfx {
-class Rect;
-}  // namespace gfx
-
-namespace cc {
-class InputHandler;
-class LayerTree;
-class LayerTreeDebugState;
-class LayerTreeMutator;
-class LayerTreeSettings;
-class CompositorFrameSink;
-class SwapPromiseMonitor;
-class TaskRunnerProvider;
-class UIResourceManager;
-
-// TODO(khushalsagar): Will be renamed to LayerTreeHost.
-class CC_EXPORT LayerTreeHostInterface {
- public:
-  virtual ~LayerTreeHostInterface() {}
-
-  // Returns the process global unique identifier for this LayerTreeHost.
-  virtual int GetId() const = 0;
-
-  // The current source frame number. This is incremented for each main frame
-  // update(commit) pushed to the compositor thread.
-  virtual int SourceFrameNumber() const = 0;
-
-  // Returns the LayerTree that holds the main frame state pushed to the
-  // LayerTreeImpl on commit.
-  virtual LayerTree* GetLayerTree() = 0;
-  virtual const LayerTree* GetLayerTree() const = 0;
-
-  // Returns the UIResourceManager used to create UIResources for
-  // UIResourceLayers pushed to the LayerTree.
-  virtual UIResourceManager* GetUIResourceManager() const = 0;
-
-  // Returns the TaskRunnerProvider used to access the main and compositor
-  // thread task runners.
-  virtual TaskRunnerProvider* GetTaskRunnerProvider() const = 0;
-
-  // Returns the settings used by this host.
-  virtual const LayerTreeSettings& GetSettings() const = 0;
-
-  // Sets the client id used to generate the SurfaceId that uniquely identifies
-  // the Surfaces produced by this compositor.
-  virtual void SetSurfaceClientId(uint32_t client_id) = 0;
-
-  // Sets the LayerTreeMutator interface used to directly mutate the compositor
-  // state on the compositor thread. (Compositor-Worker)
-  virtual void SetLayerTreeMutator(
-      std::unique_ptr<LayerTreeMutator> mutator) = 0;
-
-  // Call this function when you expect there to be a swap buffer.
-  // 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 -------------------------------
-
-  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(
-      std::unique_ptr<CompositorFrameSink> compositor_frame_sink) = 0;
-
-  // Forces the host to immediately release all references to the
-  // CompositorFrameSink, if any. Can be safely called any time.
-  virtual std::unique_ptr<CompositorFrameSink> ReleaseCompositorFrameSink() = 0;
-
-  // Frame Scheduling (main and compositor frames) requests -------
-
-  // Requests a main frame update even if no content has changed. This is used,
-  // for instance in the case of RequestAnimationFrame from blink to ensure the
-  // main frame update is run on the next tick without pre-emptively forcing a
-  // full commit synchronization or layer updates.
-  virtual void SetNeedsAnimate() = 0;
-
-  // Requests a main frame update and also ensure that the host pulls layer
-  // updates from the client, even if no content might have changed, without
-  // forcing a full commit synchronization.
-  virtual void SetNeedsUpdateLayers() = 0;
-
-  // Requests that the next main frame update performs a full commit
-  // synchronization.
-  virtual void SetNeedsCommit() = 0;
-
-  // Returns true if a main frame (for any pipeline stage above) has been
-  // requested.
-  virtual bool BeginMainFrameRequested() const = 0;
-
-  // Returns true if a main frame with commit synchronization has been
-  // requested.
-  virtual bool CommitRequested() const = 0;
-
-  // Enables/disables the compositor from requesting main frame updates from the
-  // client.
-  virtual void SetDeferCommits(bool defer_commits) = 0;
-
-  // Synchronously performs a main frame update and layer updates. Used only in
-  // single threaded mode when the compositor's internal scheduling is disabled.
-  virtual void LayoutAndUpdateLayers() = 0;
-
-  // Synchronously performs a complete main frame update, commit and compositor
-  // frame. Used only in single threaded mode when the compositor's internal
-  // scheduling is disabled.
-  virtual void Composite(base::TimeTicks frame_begin_time) = 0;
-
-  // Requests a redraw (compositor frame) for the complete viewport.
-  virtual void SetNeedsRedraw() = 0;
-
-  // Requests a redraw (compositor frame) for the given rect.
-  virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) = 0;
-
-  // Requests a main frame (including layer updates) and ensures that this main
-  // frame results in a redraw for the complete viewport when producing the
-  // CompositorFrame.
-  virtual void SetNextCommitForcesRedraw() = 0;
-
-  // Input Handling ---------------------------------------------
-
-  // Notifies the compositor that input from the browser is being throttled till
-  // the next commit. The compositor will prioritize activation of the pending
-  // tree so a commit can be performed.
-  virtual void NotifyInputThrottledUntilCommit() = 0;
-
-  // Sets the state of the top controls. (Used for URL bar animations on
-  // android).
-  virtual void UpdateTopControlsState(TopControlsState constraints,
-                                      TopControlsState current,
-                                      bool animate) = 0;
-
-  // Returns a reference to the InputHandler used to respond to input events on
-  // the compositor thread.
-  virtual const base::WeakPtr<InputHandler>& GetInputHandler() const = 0;
-
-  // Informs the compositor that an active fling gesture being processed on the
-  // main thread has been finished.
-  virtual void DidStopFlinging() = 0;
-
-  // Debugging and benchmarks ---------------------------------
-  virtual void SetDebugState(const LayerTreeDebugState& debug_state) = 0;
-  virtual const LayerTreeDebugState& GetDebugState() const = 0;
-
-  // Returns the id of the benchmark on success, 0 otherwise.
-  virtual int ScheduleMicroBenchmark(
-      const std::string& benchmark_name,
-      std::unique_ptr<base::Value> value,
-      const MicroBenchmark::DoneCallback& callback) = 0;
-
-  // Returns true if the message was successfully delivered and handled.
-  virtual bool SendMessageToMicroBenchmark(
-      int id,
-      std::unique_ptr<base::Value> value) = 0;
-
-  // Methods used internally in cc. These are not intended to be a part of the
-  // public API for use by the embedder ----------------------
-  virtual SurfaceSequenceGenerator* GetSurfaceSequenceGenerator() = 0;
-};
-
-}  // namespace cc
-
-#endif  // CC_TREES_LAYER_TREE_HOST_INTERFACE_H_