Remove parts of //cc we aren't using

cc/trees/single_thread_proxy.h

Index: cc/trees/single_thread_proxy.h
diff --git a/cc/trees/single_thread_proxy.h b/cc/trees/single_thread_proxy.h
deleted file mode 100644
index cfc746a64a9f048c7f69f844255a4cb5527fbd54..0000000000000000000000000000000000000000
--- a/cc/trees/single_thread_proxy.h
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright 2011 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_SINGLE_THREAD_PROXY_H_
-#define CC_TREES_SINGLE_THREAD_PROXY_H_
-
-#include <limits>
-
-#include "base/cancelable_callback.h"
-#include "base/time/time.h"
-#include "cc/animation/animation_events.h"
-#include "cc/output/begin_frame_args.h"
-#include "cc/scheduler/scheduler.h"
-#include "cc/trees/blocking_task_runner.h"
-#include "cc/trees/layer_tree_host_impl.h"
-#include "cc/trees/proxy.h"
-#include "cc/trees/proxy_timing_history.h"
-
-namespace cc {
-
-class BeginFrameSource;
-class ContextProvider;
-class LayerTreeHost;
-class LayerTreeHostSingleThreadClient;
-class ResourceUpdateQueue;
-
-class CC_EXPORT SingleThreadProxy : public Proxy,
-                                    NON_EXPORTED_BASE(LayerTreeHostImplClient),
-                                    SchedulerClient {
- public:
-  static scoped_ptr<Proxy> Create(
-      LayerTreeHost* layer_tree_host,
-      LayerTreeHostSingleThreadClient* client,
-      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-      scoped_ptr<BeginFrameSource> external_begin_frame_source);
-  ~SingleThreadProxy() override;
-
-  // Proxy implementation
-  void FinishAllRendering() override;
-  bool IsStarted() const override;
-  bool CommitToActiveTree() const override;
-  void SetOutputSurface(scoped_ptr<OutputSurface>) override;
-  void SetLayerTreeHostClientReady() override;
-  void SetVisible(bool visible) override;
-  void SetThrottleFrameProduction(bool throttle) override;
-  const RendererCapabilities& GetRendererCapabilities() const override;
-  void SetNeedsAnimate() override;
-  void SetNeedsUpdateLayers() override;
-  void SetNeedsCommit() override;
-  void SetNeedsRedraw(const gfx::Rect& damage_rect) override;
-  void SetNextCommitWaitsForActivation() override;
-  void NotifyInputThrottledUntilCommit() override {}
-  void SetDeferCommits(bool defer_commits) override;
-  bool CommitRequested() const override;
-  bool BeginMainFrameRequested() const override;
-  void MainThreadHasStoppedFlinging() override {}
-  void Start() override;
-  void Stop() override;
-  size_t MaxPartialTextureUpdates() const override;
-  void ForceSerializeOnSwapBuffers() override;
-  bool SupportsImplScrolling() const override;
-  bool MainFrameWillHappenForTesting() override;
-  void SetChildrenNeedBeginFrames(bool children_need_begin_frames) override;
-
-  // SchedulerClient implementation
-  void WillBeginImplFrame(const BeginFrameArgs& args) override;
-  void ScheduledActionSendBeginMainFrame() override;
-  DrawResult ScheduledActionDrawAndSwapIfPossible() override;
-  DrawResult ScheduledActionDrawAndSwapForced() override;
-  void ScheduledActionCommit() override;
-  void ScheduledActionAnimate() override;
-  void ScheduledActionActivateSyncTree() override;
-  void ScheduledActionBeginOutputSurfaceCreation() override;
-  void ScheduledActionPrepareTiles() override;
-  void DidAnticipatedDrawTimeChange(base::TimeTicks time) override;
-  base::TimeDelta DrawDurationEstimate() override;
-  base::TimeDelta BeginMainFrameToCommitDurationEstimate() override;
-  base::TimeDelta CommitToActivateDurationEstimate() override;
-  void DidBeginImplFrameDeadline() override;
-  void SendBeginFramesToChildren(const BeginFrameArgs& args) override;
-  void SendBeginMainFrameNotExpectedSoon() override;
-
-  // LayerTreeHostImplClient implementation
-  void UpdateRendererCapabilitiesOnImplThread() override;
-  void DidLoseOutputSurfaceOnImplThread() override;
-  void CommitVSyncParameters(base::TimeTicks timebase,
-                             base::TimeDelta interval) override;
-  void SetEstimatedParentDrawTime(base::TimeDelta draw_time) override;
-  void SetMaxSwapsPendingOnImplThread(int max) override {}
-  void DidSwapBuffersOnImplThread() override;
-  void DidSwapBuffersCompleteOnImplThread() override;
-  void OnCanDrawStateChanged(bool can_draw) override;
-  void NotifyReadyToActivate() override;
-  void NotifyReadyToDraw() override;
-  void SetNeedsRedrawOnImplThread() override;
-  void SetNeedsRedrawRectOnImplThread(const gfx::Rect& dirty_rect) override;
-  void SetNeedsAnimateOnImplThread() override;
-  void SetNeedsPrepareTilesOnImplThread() override;
-  void SetNeedsCommitOnImplThread() override;
-  void PostAnimationEventsToMainThreadOnImplThread(
-      scoped_ptr<AnimationEventsVector> events) override;
-  bool ReduceContentsTextureMemoryOnImplThread(size_t limit_bytes,
-                                               int priority_cutoff) override;
-  bool IsInsideDraw() override;
-  void RenewTreePriority() override {}
-  void PostDelayedAnimationTaskOnImplThread(const base::Closure& task,
-                                            base::TimeDelta delay) override {}
-  void DidActivateSyncTree() override;
-  void DidPrepareTiles() override;
-  void DidCompletePageScaleAnimationOnImplThread() override;
-  void SetDebugState(const LayerTreeDebugState& debug_state) override {}
-
-  void RequestNewOutputSurface();
-
-  // Called by the legacy path where RenderWidget does the scheduling.
-  void CompositeImmediately(base::TimeTicks frame_begin_time);
-
- protected:
-  SingleThreadProxy(
-      LayerTreeHost* layer_tree_host,
-      LayerTreeHostSingleThreadClient* client,
-      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-      scoped_ptr<BeginFrameSource> external_begin_frame_source);
-
- private:
-  void BeginMainFrame();
-  void BeginMainFrameAbortedOnImplThread(CommitEarlyOutReason reason);
-  void DoAnimate();
-  void DoBeginMainFrame(const BeginFrameArgs& begin_frame_args);
-  void DoCommit();
-  DrawResult DoComposite(base::TimeTicks frame_begin_time,
-                         LayerTreeHostImpl::FrameData* frame);
-  void DoSwap();
-  void DidCommitAndDrawFrame();
-  void CommitComplete();
-
-  bool ShouldComposite() const;
-  void ScheduleRequestNewOutputSurface();
-
-  // Accessed on main thread only.
-  LayerTreeHost* layer_tree_host_;
-  LayerTreeHostSingleThreadClient* client_;
-
-  // Used on the Thread, but checked on main thread during
-  // initialization/shutdown.
-  scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
-  RendererCapabilities renderer_capabilities_for_main_thread_;
-
-  // Accessed from both threads.
-  scoped_ptr<Scheduler> scheduler_on_impl_thread_;
-  ProxyTimingHistory timing_history_;
-
-  scoped_ptr<BlockingTaskRunner::CapturePostTasks> commit_blocking_task_runner_;
-  scoped_ptr<ResourceUpdateQueue> queue_for_commit_;
-  bool next_frame_is_newly_committed_frame_;
-
-  bool inside_draw_;
-  bool defer_commits_;
-  bool commit_requested_;
-  bool inside_synchronous_composite_;
-
-  // True if a request to the LayerTreeHostClient to create an output surface
-  // is still outstanding.
-  bool output_surface_creation_requested_;
-
-  // This is the callback for the scheduled RequestNewOutputSurface.
-  base::CancelableClosure output_surface_creation_callback_;
-
-  scoped_ptr<BeginFrameSource> external_begin_frame_source_;
-
-  base::WeakPtrFactory<SingleThreadProxy> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(SingleThreadProxy);
-};
-
-// For use in the single-threaded case. In debug builds, it pretends that the
-// code is running on the impl thread to satisfy assertion checks.
-class DebugScopedSetImplThread {
- public:
-  explicit DebugScopedSetImplThread(Proxy* proxy) : proxy_(proxy) {
-#if DCHECK_IS_ON()
-    previous_value_ = proxy_->impl_thread_is_overridden_;
-    proxy_->SetCurrentThreadIsImplThread(true);
-#endif
-  }
-  ~DebugScopedSetImplThread() {
-#if DCHECK_IS_ON()
-    proxy_->SetCurrentThreadIsImplThread(previous_value_);
-#endif
-  }
-
- private:
-  bool previous_value_;
-  Proxy* proxy_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThread);
-};
-
-// For use in the single-threaded case. In debug builds, it pretends that the
-// code is running on the main thread to satisfy assertion checks.
-class DebugScopedSetMainThread {
- public:
-  explicit DebugScopedSetMainThread(Proxy* proxy) : proxy_(proxy) {
-#if DCHECK_IS_ON()
-    previous_value_ = proxy_->impl_thread_is_overridden_;
-    proxy_->SetCurrentThreadIsImplThread(false);
-#endif
-  }
-  ~DebugScopedSetMainThread() {
-#if DCHECK_IS_ON()
-    proxy_->SetCurrentThreadIsImplThread(previous_value_);
-#endif
-  }
-
- private:
-  bool previous_value_;
-  Proxy* proxy_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebugScopedSetMainThread);
-};
-
-// For use in the single-threaded case. In debug builds, it pretends that the
-// code is running on the impl thread and that the main thread is blocked to
-// satisfy assertion checks
-class DebugScopedSetImplThreadAndMainThreadBlocked {
- public:
-  explicit DebugScopedSetImplThreadAndMainThreadBlocked(Proxy* proxy)
-      : impl_thread_(proxy), main_thread_blocked_(proxy) {}
-
- private:
-  DebugScopedSetImplThread impl_thread_;
-  DebugScopedSetMainThreadBlocked main_thread_blocked_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThreadAndMainThreadBlocked);
-};
-
-}  // namespace cc
-
-#endif  // CC_TREES_SINGLE_THREAD_PROXY_H_