[cc] Add stub for IsCheapInRect

cc/picture.cc

Index: cc/picture.cc
diff --git a/cc/picture.cc b/cc/picture.cc
index c850fd8e3e954c7f75068a7e383c557c1dbf092b..83d3b48cea4401d35f739abb66d1a2ba204856c6 100644
--- a/cc/picture.cc
+++ b/cc/picture.cc
@@ -92,6 +92,10 @@ void Picture::Record(ContentLayerClient* painter,
   opaque_rect_ = gfx::ToEnclosedRect(opaque_layer_rect);
 }
 
+void Picture::IsCheapInRect(gfx::Rect contents, float contents_scale) {

[enne (OOO), 2013/01/31 21:34:37]

Did you mean to add this too?

+    return false;
+}
+
 void Picture::Raster(
     SkCanvas* canvas,
     gfx::Rect content_rect,
@@ -108,6 +112,10 @@ void Picture::Raster(
   canvas->restore();
 }
 
+void Picture::WillRasterTakeLessThanOneMillisecond(const gfx::Rect& layer_rect) {

[enne (OOO), 2013/01/31 21:34:37]

This is an awfully specific name.  Is EstimatedRasterTimeInMilliseconds() too
unreasonable to ask from Skia?

+  return false;
+}
+
 void Picture::GatherPixelRefs(const gfx::Rect& layer_rect,
                               std::list<skia::LazyPixelRef*>& pixel_ref_list) {
   DCHECK(picture_);