cc: Move UI Resource management out of LayerTreeHost.

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 OutputSurface;
 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;
@@ skipping 119 matching lines @@
   // InsertSwapPromiseMonitor() to register itself with LayerTreeHost.
   // When the monitor is destroyed, it calls RemoveSwapPromiseMonitor()
   // to unregister itself.
   virtual void InsertSwapPromiseMonitor(SwapPromiseMonitor* monitor) = 0;
   virtual void RemoveSwapPromiseMonitor(SwapPromiseMonitor* monitor) = 0;
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_INTERFACE_H_