Adaptively throttle texture uploads

cc/CCTextureUpdateController.h

Index: cc/CCTextureUpdateController.h
diff --git a/cc/CCTextureUpdateController.h b/cc/CCTextureUpdateController.h
index 6fc8db3d9f78b962c2ec321403911d8c1a6a0e90..164181bd80b3ef7377ab9b82ed4dba070c099c32 100644
--- a/cc/CCTextureUpdateController.h
+++ b/cc/CCTextureUpdateController.h
@@ -18,15 +18,13 @@ class TextureUploader;
 class CCTextureUpdateController : public CCTimerClient {
     WTF_MAKE_NONCOPYABLE(CCTextureUpdateController);
 public:
-    static PassOwnPtr<CCTextureUpdateController> create(CCThread* thread, PassOwnPtr<CCTextureUpdateQueue> queue, CCResourceProvider* resourceProvider, TextureCopier* copier, TextureUploader* uploader)
-    {
-        return adoptPtr(new CCTextureUpdateController(thread, queue, resourceProvider, copier, uploader));
-    }
-    static size_t maxPartialTextureUpdates();
+    static PassOwnPtr<CCTextureUpdateController> create(CCThread*, PassOwnPtr<CCTextureUpdateQueue>, CCResourceProvider*, TextureCopier*, TextureUploader*, size_t maxTextureUpdates);
     static void updateTextures(CCResourceProvider*, TextureCopier*, TextureUploader*, CCTextureUpdateQueue*, size_t count);
+    static size_t maxTextureUpdates(TextureUploader*);
 
     virtual ~CCTextureUpdateController();
 
+
     bool hasMoreUpdates() const;
     void updateMoreTextures(double monotonicTimeLimit);
 
@@ -39,7 +37,7 @@ public:
     virtual size_t updateMoreTexturesSize() const;
 
 protected:
-    CCTextureUpdateController(CCThread*, PassOwnPtr<CCTextureUpdateQueue>, CCResourceProvider*, TextureCopier*, TextureUploader*);
+    CCTextureUpdateController(CCThread*, PassOwnPtr<CCTextureUpdateQueue>, CCResourceProvider*, TextureCopier*, TextureUploader*, size_t maxTextureUpdates);
 
     void updateMoreTexturesIfEnoughTimeRemaining();
     void updateMoreTexturesNow();
@@ -51,6 +49,7 @@ protected:
     TextureCopier* m_copier;
     TextureUploader* m_uploader;
     double m_monotonicTimeLimit;
+    size_t m_textureUpdatesPerTick;
     bool m_firstUpdateAttempt;
 };