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