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

cc/CCPrioritizedTexture.cpp

Index: cc/CCPrioritizedTexture.cpp
diff --git a/cc/CCPrioritizedTexture.cpp b/cc/CCPrioritizedTexture.cpp
index 2940e925227420bcf189cb22b1b853115003d336..496977fe16405a4672ecd4c22123ab2dc8723f43 100644
--- a/cc/CCPrioritizedTexture.cpp
+++ b/cc/CCPrioritizedTexture.cpp
@@ -99,6 +99,19 @@ void CCPrioritizedTexture::upload(CCResourceProvider* resourceProvider,
     resourceProvider->upload(resourceId(), image, imageRect, sourceRect, destOffset);
 }
 
+void CCPrioritizedTexture::acceleratedUpdate(
+    CCResourceProvider* resourceProvider,
+    SkPicture* picture, const IntRect& pictureRect,
+    const IntRect& sourceRect, const IntSize& destOffset)
+{
+    ASSERT(m_isAbovePriorityCutoff);
+    if (m_isAbovePriorityCutoff)
+        acquireBackingTexture(resourceProvider);
+    ASSERT(m_backing);
+    resourceProvider->acceleratedUpdate(
+        resourceId(), picture, pictureRect, sourceRect, destOffset);
+}
+
 void CCPrioritizedTexture::link(Backing* backing)
 {
     ASSERT(backing);