Adaptively throttle texture uploads

cc/CCTextureUpdateController.h

Index: cc/CCTextureUpdateController.h
diff --git a/cc/CCTextureUpdateController.h b/cc/CCTextureUpdateController.h
index 61e0f6ce3257333449bbafb313b95ebf22be5116..0f69ae8bbd0f010d89b98cc2b76274ddf12e09a5 100644
--- a/cc/CCTextureUpdateController.h
+++ b/cc/CCTextureUpdateController.h
@@ -26,11 +26,12 @@ protected:
 class CCTextureUpdateController : public CCTimerClient {
     WTF_MAKE_NONCOPYABLE(CCTextureUpdateController);
 public:
-    static PassOwnPtr<CCTextureUpdateController> create(CCTextureUpdateControllerClient* client, CCThread* thread, PassOwnPtr<CCTextureUpdateQueue> queue, CCResourceProvider* resourceProvider, TextureCopier* copier, TextureUploader* uploader)
+    static PassOwnPtr<CCTextureUpdateController> create(CCTextureUpdateControllerClient* client, CCThread* thread, PassOwnPtr<CCTextureUpdateQueue> queue, CCResourceProvider* resourceProvider, TextureCopier* copier, TextureUploader* uploader, size_t maxPartialTextureUpdates)
     {
-        return adoptPtr(new CCTextureUpdateController(client, thread, queue, resourceProvider, copier, uploader));
+        return adoptPtr(new CCTextureUpdateController(client, thread, queue, resourceProvider, copier, uploader, maxPartialTextureUpdates));
     }
-    static size_t maxPartialTextureUpdates();
+    static size_t maxPartialUpdatesDefault();
+    static size_t maxPartialUpdates(TextureUploader*);
     static void updateTextures(CCResourceProvider*, TextureCopier*, TextureUploader*, CCTextureUpdateQueue*, size_t count);
 
     virtual ~CCTextureUpdateController();
@@ -47,7 +48,9 @@ public:
     virtual size_t updateMoreTexturesSize() const;
 
 protected:
-    CCTextureUpdateController(CCTextureUpdateControllerClient*, CCThread*, PassOwnPtr<CCTextureUpdateQueue>, CCResourceProvider*, TextureCopier*, TextureUploader*);
+    CCTextureUpdateController(CCTextureUpdateControllerClient*, CCThread*, PassOwnPtr<CCTextureUpdateQueue>, CCResourceProvider*, TextureCopier*, TextureUploader*, size_t maxPartialTextureUpdates);
+
+    static size_t maxFullUpdatesPerTick(TextureUploader*);
 
     // This returns true when there were textures left to update.
     bool updateMoreTexturesIfEnoughTimeRemaining();
@@ -61,6 +64,8 @@ protected:
     TextureCopier* m_copier;
     TextureUploader* m_uploader;
     double m_monotonicTimeLimit;
+    size_t m_textureUpdatesPerTick;
+    size_t m_maxPartialTextureUpdates;
     bool m_firstUpdateAttempt;
 };