[cc] Rename all cc/ filenames to Chromium style

cc/CCSchedulerStateMachine.h

-// Copyright 2011 The Chromium Authors. All rights reserved.
+// Copyright 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 CCSchedulerStateMachine_h
-#define CCSchedulerStateMachine_h
-
-#include <string>
-
-#include "base/basictypes.h"
-
-namespace cc {
-
-// The CCSchedulerStateMachine decides how to coordinate main thread activites
-// like painting/running javascript with rendering and input activities on the
-// impl thread.
-//
-// The state machine tracks internal state but is also influenced by external state.
-// Internal state includes things like whether a frame has been requested, while
-// external state includes things like the current time being near to the vblank time.
-//
-// The scheduler seperates "what to do next" from the updating of its internal state to
-// make testing cleaner.
-class CCSchedulerStateMachine {
-public:
-    CCSchedulerStateMachine();
-
-    enum CommitState {
-        COMMIT_STATE_IDLE,
-        COMMIT_STATE_FRAME_IN_PROGRESS,
-        COMMIT_STATE_READY_TO_COMMIT,
-        COMMIT_STATE_WAITING_FOR_FIRST_DRAW,
-    };
-
-    enum TextureState {
-        LAYER_TEXTURE_STATE_UNLOCKED,
-        LAYER_TEXTURE_STATE_ACQUIRED_BY_MAIN_THREAD,
-        LAYER_TEXTURE_STATE_ACQUIRED_BY_IMPL_THREAD,
-    };
-
-    enum ContextState {
-        CONTEXT_ACTIVE,
-        CONTEXT_LOST,
-        CONTEXT_RECREATING,
-    };
-
-    bool commitPending() const
-    {
-        return m_commitState != COMMIT_STATE_IDLE;
-    }
-
-    bool redrawPending() const { return m_needsRedraw; }
-
-    enum Action {
-        ACTION_NONE,
-        ACTION_BEGIN_FRAME,
-        ACTION_COMMIT,
-        ACTION_DRAW_IF_POSSIBLE,
-        ACTION_DRAW_FORCED,
-        ACTION_BEGIN_CONTEXT_RECREATION,
-        ACTION_ACQUIRE_LAYER_TEXTURES_FOR_MAIN_THREAD,
-    };
-    Action nextAction() const;
-    void updateState(Action);
-
-    // Indicates whether the scheduler needs a vsync callback in order to make
-    // progress.
-    bool vsyncCallbackNeeded() const;
-
-    // Indicates that the system has entered and left a vsync callback.
-    // The scheduler will not draw more than once in a given vsync callback.
-    void didEnterVSync();
-    void didLeaveVSync();
-
-    // Indicates whether the LayerTreeHostImpl is visible.
-    void setVisible(bool);
-
-    // Indicates that a redraw is required, either due to the impl tree changing
-    // or the screen being damaged and simply needing redisplay.
-    void setNeedsRedraw();
-
-    // As setNeedsRedraw(), but ensures the draw will definitely happen even if
-    // we are not visible.
-    void setNeedsForcedRedraw();
-
-    // Indicates whether ACTION_DRAW_IF_POSSIBLE drew to the screen or not.
-    void didDrawIfPossibleCompleted(bool success);
-
-    // Indicates that a new commit flow needs to be performed, either to pull
-    // updates from the main thread to the impl, or to push deltas from the impl
-    // thread to main.
-    void setNeedsCommit();
-
-    // As setNeedsCommit(), but ensures the beginFrame will definitely happen even if
-    // we are not visible.
-    void setNeedsForcedCommit();
-
-    // Call this only in response to receiving an ACTION_BEGIN_FRAME
-    // from nextState. Indicates that all painting is complete.
-    void beginFrameComplete();
-
-    // Call this only in response to receiving an ACTION_BEGIN_FRAME
-    // from nextState if the client rejects the beginFrame message.
-    void beginFrameAborted();
-
-    // Request exclusive access to the textures that back single buffered
-    // layers on behalf of the main thread. Upon acqusition,
-    // ACTION_DRAW_IF_POSSIBLE will not draw until the main thread releases the
-    // textures to the impl thread by committing the layers.
-    void setMainThreadNeedsLayerTextures();
-
-    // Indicates whether we can successfully begin a frame at this time.
-    void setCanBeginFrame(bool can) { m_canBeginFrame = can; }
-
-    // Indicates whether drawing would, at this time, make sense.
-    // canDraw can be used to supress flashes or checkerboarding
-    // when such behavior would be undesirable.
-    void setCanDraw(bool can) { m_canDraw = can; }
-
-    void didLoseContext();
-    void didRecreateContext();
-
-    // Exposed for testing purposes.
-    void setMaximumNumberOfFailedDrawsBeforeDrawIsForced(int);
-
-    std::string toString();
-
-protected:
-    bool shouldDrawForced() const;
-    bool drawSuspendedUntilCommit() const;
-    bool scheduledToDraw() const;
-    bool shouldDraw() const;
-    bool shouldAcquireLayerTexturesForMainThread() const;
-    bool hasDrawnThisFrame() const;
-
-    CommitState m_commitState;
-
-    int m_currentFrameNumber;
-    int m_lastFrameNumberWhereDrawWasCalled;
-    int m_consecutiveFailedDraws;
-    int m_maximumNumberOfFailedDrawsBeforeDrawIsForced;
-    bool m_needsRedraw;
-    bool m_needsForcedRedraw;
-    bool m_needsForcedRedrawAfterNextCommit;
-    bool m_needsCommit;
-    bool m_needsForcedCommit;
-    bool m_mainThreadNeedsLayerTextures;
-    bool m_insideVSync;
-    bool m_visible;
-    bool m_canBeginFrame;
-    bool m_canDraw;
-    bool m_drawIfPossibleFailed;
-    TextureState m_textureState;
-    ContextState m_contextState;
-
-    DISALLOW_COPY_AND_ASSIGN(CCSchedulerStateMachine);
-};
-
-}
-
-#endif // CCSchedulerStateMachine_h
+// Temporary forwarding header
+#include "cc/scheduler_state_machine.h"