cc: Rename visible_content_rect and content stuff on quads.

cc/layers/texture_layer.cc

Index: cc/layers/texture_layer.cc
diff --git a/cc/layers/texture_layer.cc b/cc/layers/texture_layer.cc
index 965b2f3925c5dc9453874815e94f03794761263e..e1bd4ea1e656e1ded403264b4d0bd15d627d7533 100644
--- a/cc/layers/texture_layer.cc
+++ b/cc/layers/texture_layer.cc
@@ -267,16 +267,6 @@ void TextureLayer::PushPropertiesTo(LayerImpl* layer) {
   }
 }
 
-SimpleEnclosedRegion TextureLayer::VisibleContentOpaqueRegion() const {
-  if (contents_opaque())
-    return SimpleEnclosedRegion(visible_content_rect());
-
-  if (blend_background_color_ && (SkColorGetA(background_color()) == 0xFF))
-    return SimpleEnclosedRegion(visible_content_rect());
-
-  return SimpleEnclosedRegion();
-}
-
 TextureLayer::TextureMailboxHolder::MainThreadReference::MainThreadReference(
     TextureMailboxHolder* holder)
     : holder_(holder) {