Revert of cc: Remove tile and scale specific code from raster source

cc/resources/picture_pile_unittest.cc

Index: cc/resources/picture_pile_unittest.cc
diff --git a/cc/resources/picture_pile_unittest.cc b/cc/resources/picture_pile_unittest.cc
index d8d3e8f0f95d184a5a323b1ee966d78d5d800a44..98ce3b18a07f40afabd326db98d466123fdf514f 100644
--- a/cc/resources/picture_pile_unittest.cc
+++ b/cc/resources/picture_pile_unittest.cc
@@ -17,10 +17,7 @@
 
 class PicturePileTestBase {
  public:
-  PicturePileTestBase()
-      : min_scale_(0.125),
-        pile_(min_scale_, gfx::Size(1000, 1000)),
-        frame_number_(0) {}
+  PicturePileTestBase() : min_scale_(0.125), frame_number_(0) {}
 
   void InitializeData() {
     pile_.SetTileGridSize(gfx::Size(1000, 1000));
@@ -55,9 +52,9 @@
     return result;
   }
 
-  float min_scale_;
   FakeContentLayerClient client_;
   FakePicturePile pile_;
+  float min_scale_;
   int frame_number_;
 };