cc: Remove LayerTextureUpdater::Texture::updateRect() callback.

cc/LayerTextureUpdater.h

Index: cc/LayerTextureUpdater.h
diff --git a/cc/LayerTextureUpdater.h b/cc/LayerTextureUpdater.h
index 89fc520475a64d1261bc27a0c7916b1745b55b05..3b13dca20bc6df35b656c7fc9518bd7584804a5c 100644
--- a/cc/LayerTextureUpdater.h
+++ b/cc/LayerTextureUpdater.h
@@ -18,6 +18,7 @@ class IntRect;
 class IntSize;
 class TextureManager;
 struct CCRenderingStats;
+class CCTextureUpdateQueue;
 
 class LayerTextureUpdater : public RefCounted<LayerTextureUpdater> {
 public:
@@ -28,9 +29,9 @@ public:
 
         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;
+        // TODO(reveman): partialUpdate should be a property of this class
+        // instead of an argument passed to update().
+        virtual void update(CCTextureUpdateQueue&, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate, CCRenderingStats&) = 0;

[enne (OOO), 2012/10/12 21:25:04]

This is a small nit, but could you just figure out using sourceRect size /
destOffset / m_texture size to know if this was a partial update implicitly?

[reveman, 2012/10/12 21:43:11]

Yes, that's my plan. The problem is that 'partialUpdate' currently means two
things. 1) we're updating part of the texture. 2) the update is not buffered. We
care about both these things on the impl side. The size of the update matters
for our cost estimate and if it's buffered affects our ability to do incremental
updates.

My plans is to use sourceRect, destOffset and m_texture to determine if it's a
full update and use a separate property (in_use_on_impl_) to determine if it's a
buffered update.

     protected:
         explicit Texture(scoped_ptr<CCPrioritizedTexture> texture);