[cc] Rename all cc/ filenames to Chromium style

cc/layer_texture_updater.h

-// Copyright 2012 The Chromium Authors. All rights reserved.
+// 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 LayerTextureUpdater_h
+#define LayerTextureUpdater_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "CCPrioritizedTexture.h"
+#include "GraphicsTypes3D.h"
+#include <wtf/RefCounted.h>
+
+namespace cc {
+
+class IntRect;
+class IntSize;
+class TextureManager;
+struct CCRenderingStats;
+
+class LayerTextureUpdater : public RefCounted<LayerTextureUpdater> {
+public:
+    // Allows texture uploaders to store per-tile resources.
+    class Texture {
+    public:
+        virtual ~Texture();
+
+        CCPrioritizedTexture* texture() { return m_texture.get(); }
+        void swapTextureWith(scoped_ptr<CCPrioritizedTexture>& texture) { m_texture.swap(texture); }
+        virtual void prepareRect(const IntRect& /* sourceRect */, CCRenderingStats&) { }
+        virtual void updateRect(CCResourceProvider*, const IntRect& sourceRect, const IntSize& destOffset) = 0;
+        virtual bool backingResourceWasEvicted() const;
+    protected:
+        explicit Texture(scoped_ptr<CCPrioritizedTexture> texture);
+
+    private:
+        scoped_ptr<CCPrioritizedTexture> m_texture;
+    };
+
+    LayerTextureUpdater()
+    {
+        turnOffVerifier(); // In the component build we don't have WTF threading initialized in this DLL so the thread verifier explodes.
+    }
+
+    virtual ~LayerTextureUpdater() { }
+
+    enum SampledTexelFormat {
+        SampledTexelFormatRGBA,
+        SampledTexelFormatBGRA,
+        SampledTexelFormatInvalid,
+    };
+    virtual PassOwnPtr<Texture> createTexture(CCPrioritizedTextureManager*) = 0;
+    // Returns the format of the texel uploaded by this interface.
+    // This format should not be confused by texture internal format.
+    // This format specifies the component order in the sampled texel.
+    // If the format is TexelFormatBGRA, vec4.x is blue and vec4.z is red.
+    virtual SampledTexelFormat sampledTexelFormat(GC3Denum textureFormat) = 0;
+    // The |resultingOpaqueRect| gives back a region of the layer that was painted opaque. If the layer is marked opaque in the updater,
+    // then this region should be ignored in preference for the entire layer's area.
+    virtual void prepareToUpdate(const IntRect& contentRect, const IntSize& tileSize, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpaqueRect, CCRenderingStats&) { }
+
+    // Set true by the layer when it is known that the entire output is going to be opaque.
+    virtual void setOpaque(bool) { }
+};
+
+} // namespace cc
+#endif // USE(ACCELERATED_COMPOSITING)
+#endif // LayerTextureUpdater_h