[cc] Rename all cc/ filenames to Chromium style

cc/CCLayerTreeHost.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 CCLayerTreeHost_h
-#define CCLayerTreeHost_h
-
-#include "base/basictypes.h"
-#include "base/hash_tables.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "CCAnimationEvents.h"
-#include "CCGraphicsContext.h"
-#include "CCLayerTreeHostClient.h"
-#include "CCLayerTreeHostCommon.h"
-#include "CCOcclusionTracker.h"
-#include "CCPrioritizedTextureManager.h"
-#include "CCProxy.h"
-#include "CCRenderingStats.h"
-#include "IntRect.h"
-#include "RateLimiter.h"
-#include "scoped_ptr_vector.h"
-#include "SkColor.h"
-#include <limits>
-
-#if defined(COMPILER_GCC)
-namespace BASE_HASH_NAMESPACE {
-template<>
-struct hash<WebKit::WebGraphicsContext3D*> {
-  size_t operator()(WebKit::WebGraphicsContext3D* ptr) const {
-    return hash<size_t>()(reinterpret_cast<size_t>(ptr));
-  }
-};
-} // namespace BASE_HASH_NAMESPACE
-#endif // COMPILER
-
-namespace cc {
-
-class CCFontAtlas;
-class CCLayerChromium;
-class CCLayerTreeHostImpl;
-class CCLayerTreeHostImplClient;
-class CCPrioritizedTextureManager;
-class CCTextureUpdateQueue;
-class HeadsUpDisplayLayerChromium;
-class Region;
-struct CCScrollAndScaleSet;
-
-struct CCLayerTreeSettings {
-    CCLayerTreeSettings();
-    ~CCLayerTreeSettings();
-
-    bool acceleratePainting;
-    bool showFPSCounter;
-    bool showPlatformLayerTree;
-    bool showPaintRects;
-    bool showPropertyChangedRects;
-    bool showSurfaceDamageRects;
-    bool showScreenSpaceRects;
-    bool showReplicaScreenSpaceRects;
-    bool showOccludingRects;
-    bool renderVSyncEnabled;
-    double refreshRate;
-    size_t maxPartialTextureUpdates;
-    IntSize defaultTileSize;
-    IntSize maxUntiledLayerSize;
-    IntSize minimumOcclusionTrackingSize;
-
-    bool showDebugInfo() const { return showPlatformLayerTree || showFPSCounter || showDebugRects(); }
-    bool showDebugRects() const { return showPaintRects || showPropertyChangedRects || showSurfaceDamageRects || showScreenSpaceRects || showReplicaScreenSpaceRects || showOccludingRects; }
-};
-
-// Provides information on an Impl's rendering capabilities back to the CCLayerTreeHost
-struct RendererCapabilities {
-    RendererCapabilities();
-    ~RendererCapabilities();
-
-    GC3Denum bestTextureFormat;
-    bool contextHasCachedFrontBuffer;
-    bool usingPartialSwap;
-    bool usingAcceleratedPainting;
-    bool usingSetVisibility;
-    bool usingSwapCompleteCallback;
-    bool usingGpuMemoryManager;
-    bool usingDiscardFramebuffer;
-    bool usingEglImage;
-    int maxTextureSize;
-};
-
-class CCLayerTreeHost : public RateLimiterClient {
-public:
-    static scoped_ptr<CCLayerTreeHost> create(CCLayerTreeHostClient*, const CCLayerTreeSettings&);
-    virtual ~CCLayerTreeHost();
-
-    void setSurfaceReady();
-
-    // Returns true if any CCLayerTreeHost is alive.
-    static bool anyLayerTreeHostInstanceExists();
-
-    static bool needsFilterContext() { return s_needsFilterContext; }
-    static void setNeedsFilterContext(bool needsFilterContext) { s_needsFilterContext = needsFilterContext; }
-    bool needsSharedContext() const { return needsFilterContext() || settings().acceleratePainting; }
-
-    // CCLayerTreeHost interface to CCProxy.
-    void willBeginFrame() { m_client->willBeginFrame(); }
-    void didBeginFrame() { m_client->didBeginFrame(); }
-    void updateAnimations(double monotonicFrameBeginTime);
-    void layout();
-    void beginCommitOnImplThread(CCLayerTreeHostImpl*);
-    void finishCommitOnImplThread(CCLayerTreeHostImpl*);
-    void willCommit();
-    void commitComplete();
-    scoped_ptr<CCGraphicsContext> createContext();
-    scoped_ptr<CCInputHandler> createInputHandler();
-    virtual scoped_ptr<CCLayerTreeHostImpl> createLayerTreeHostImpl(CCLayerTreeHostImplClient*);
-    void didLoseContext();
-    enum RecreateResult {
-        RecreateSucceeded,
-        RecreateFailedButTryAgain,
-        RecreateFailedAndGaveUp,
-    };
-    RecreateResult recreateContext();
-    void didCommitAndDrawFrame() { m_client->didCommitAndDrawFrame(); }
-    void didCompleteSwapBuffers() { m_client->didCompleteSwapBuffers(); }
-    void deleteContentsTexturesOnImplThread(CCResourceProvider*);
-    virtual void acquireLayerTextures();
-    // Returns false if we should abort this frame due to initialization failure.
-    bool initializeRendererIfNeeded();
-    void updateLayers(CCTextureUpdateQueue&, size_t contentsMemoryLimitBytes);
-
-    CCLayerTreeHostClient* client() { return m_client; }
-
-    // Only used when compositing on the main thread.
-    void composite();
-    void scheduleComposite();
-
-    // Composites and attempts to read back the result into the provided
-    // buffer. If it wasn't possible, e.g. due to context lost, will return
-    // false.
-    bool compositeAndReadback(void *pixels, const IntRect&);
-
-    void finishAllRendering();
-
-    int commitNumber() const { return m_commitNumber; }
-
-    void renderingStats(CCRenderingStats*) const;
-
-    const RendererCapabilities& rendererCapabilities() const;
-
-    // Test only hook
-    void loseContext(int numTimes);
-
-    void setNeedsAnimate();
-    // virtual for testing
-    virtual void setNeedsCommit();
-    void setNeedsRedraw();
-    bool commitRequested() const;
-
-    void setAnimationEvents(scoped_ptr<CCAnimationEventsVector>, double wallClockTime);
-    virtual void didAddAnimation();
-
-    LayerChromium* rootLayer() { return m_rootLayer.get(); }
-    const LayerChromium* rootLayer() const { return m_rootLayer.get(); }
-    void setRootLayer(scoped_refptr<LayerChromium>);
-
-    const CCLayerTreeSettings& settings() const { return m_settings; }
-
-    void setViewportSize(const IntSize& layoutViewportSize, const IntSize& deviceViewportSize);
-
-    const IntSize& layoutViewportSize() const { return m_layoutViewportSize; }
-    const IntSize& deviceViewportSize() const { return m_deviceViewportSize; }
-
-    void setPageScaleFactorAndLimits(float pageScaleFactor, float minPageScaleFactor, float maxPageScaleFactor);
-
-    void setBackgroundColor(SkColor color) { m_backgroundColor = color; }
-
-    void setHasTransparentBackground(bool transparent) { m_hasTransparentBackground = transparent; }
-
-    CCPrioritizedTextureManager* contentsTextureManager() const;
-
-    // Delete contents textures' backing resources until they use only bytesLimit bytes. This may
-    // be called on the impl thread while the main thread is running.
-    void reduceContentsTexturesMemoryOnImplThread(size_t bytesLimit, CCResourceProvider*);
-    // Returns true if there any evicted backing textures that have not been deleted.
-    bool evictedContentsTexturesBackingsExist() const;
-    // Retrieve the list of all contents textures' backings that have been evicted, to pass to the
-    // main thread to unlink them from their owning textures.
-    void getEvictedContentTexturesBackings(CCPrioritizedTextureManager::BackingVector&);
-    // Unlink the list of contents textures' backings from their owning textures on the main thread
-    // before updating layers.
-    void unlinkEvictedContentTexturesBackings(const CCPrioritizedTextureManager::BackingVector&);
-    // Deletes all evicted backings, unlinking them from their owning textures if needed.
-    // Returns true if this function had to unlink any backings from their owning texture when
-    // destroying them. If this was the case, the impl layer tree may contain invalid resources.
-    bool deleteEvictedContentTexturesBackings();
-
-    bool visible() const { return m_visible; }
-    void setVisible(bool);
-
-    void startPageScaleAnimation(const IntSize& targetPosition, bool useAnchor, float scale, double durationSec);
-
-    void applyScrollAndScale(const CCScrollAndScaleSet&);
-    void setImplTransform(const WebKit::WebTransformationMatrix&);
-
-    void startRateLimiter(WebKit::WebGraphicsContext3D*);
-    void stopRateLimiter(WebKit::WebGraphicsContext3D*);
-
-    // RateLimitClient implementation
-    virtual void rateLimit() OVERRIDE;
-
-    bool bufferedUpdates();
-    bool requestPartialTextureUpdate();
-    void deleteTextureAfterCommit(scoped_ptr<CCPrioritizedTexture>);
-
-    void setDeviceScaleFactor(float);
-    float deviceScaleFactor() const { return m_deviceScaleFactor; }
-
-    void setFontAtlas(scoped_ptr<CCFontAtlas>);
-
-    HeadsUpDisplayLayerChromium* hudLayer() const { return m_hudLayer.get(); }
-
-protected:
-    CCLayerTreeHost(CCLayerTreeHostClient*, const CCLayerTreeSettings&);
-    bool initialize();
-
-private:
-    typedef std::vector<scoped_refptr<LayerChromium> > LayerList;
-
-    void initializeRenderer();
-
-    void update(LayerChromium*, CCTextureUpdateQueue&, const CCOcclusionTracker*);
-    bool paintLayerContents(const LayerList&, CCTextureUpdateQueue&);
-    bool paintMasksForRenderSurface(LayerChromium*, CCTextureUpdateQueue&);
-
-    void updateLayers(LayerChromium*, CCTextureUpdateQueue&);
-
-    void prioritizeTextures(const LayerList&, CCOverdrawMetrics&); 
-    void setPrioritiesForSurfaces(size_t surfaceMemoryBytes);
-    void setPrioritiesForLayers(const LayerList&);
-    size_t calculateMemoryForRenderSurfaces(const LayerList& updateList);
-
-    void animateLayers(double monotonicTime);
-    bool animateLayersRecursive(LayerChromium* current, double monotonicTime);
-    void setAnimationEventsRecursive(const CCAnimationEventsVector&, LayerChromium*, double wallClockTime);
-
-    bool m_animating;
-    bool m_needsAnimateLayers;
-
-    CCLayerTreeHostClient* m_client;
-
-    int m_commitNumber;
-    CCRenderingStats m_renderingStats;
-
-    scoped_ptr<CCProxy> m_proxy;
-    bool m_rendererInitialized;
-    bool m_contextLost;
-    int m_numTimesRecreateShouldFail;
-    int m_numFailedRecreateAttempts;
-
-    scoped_refptr<LayerChromium> m_rootLayer;
-    scoped_refptr<HeadsUpDisplayLayerChromium> m_hudLayer;
-    scoped_ptr<CCFontAtlas> m_fontAtlas;
-
-    scoped_ptr<CCPrioritizedTextureManager> m_contentsTextureManager;
-    scoped_ptr<CCPrioritizedTexture> m_surfaceMemoryPlaceholder;
-
-    CCLayerTreeSettings m_settings;
-
-    IntSize m_layoutViewportSize;
-    IntSize m_deviceViewportSize;
-    float m_deviceScaleFactor;
-
-    bool m_visible;
-
-    typedef base::hash_map<WebKit::WebGraphicsContext3D*, scoped_refptr<RateLimiter> > RateLimiterMap;
-    RateLimiterMap m_rateLimiters;
-
-    float m_pageScaleFactor;
-    float m_minPageScaleFactor, m_maxPageScaleFactor;
-    WebKit::WebTransformationMatrix m_implTransform;
-    bool m_triggerIdleUpdates;
-
-    SkColor m_backgroundColor;
-    bool m_hasTransparentBackground;
-
-    typedef ScopedPtrVector<CCPrioritizedTexture> TextureList;
-    TextureList m_deleteTextureAfterCommitList;
-    size_t m_partialTextureUpdateRequests;
-
-    static bool s_needsFilterContext;
-
-    DISALLOW_COPY_AND_ASSIGN(CCLayerTreeHost);
-};
-
-}  // namespace cc
-
-#endif
+// Temporary forwarding header
+#include "cc/layer_tree_host.h"