cc: Add UMA stats for record and raster time.

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 882bbf457f133772bc7994455c095de9b1c8018f..833cc1951f5cd2eacef15761826e0571b55e6f9b 100644
--- a/cc/resources/picture_pile_unittest.cc
+++ b/cc/resources/picture_pile_unittest.cc
@@ -40,11 +40,19 @@ class PicturePileTestBase {
 
   bool UpdateAndExpandInvalidation(Region* invalidation,
                                    const gfx::Size& layer_size,
-                                   const gfx::Rect& visible_layer_rect) {
+                                   const gfx::Rect& visible_layer_rect,
+                                   int* recorded_area) {
     frame_number_++;
-    return pile_.UpdateAndExpandInvalidation(&client_, invalidation, layer_size,
-                                             visible_layer_rect, frame_number_,
-                                             RecordingSource::RECORD_NORMALLY);
+    return pile_.UpdateAndExpandInvalidation(
+        &client_, invalidation, layer_size, visible_layer_rect, frame_number_,
+        RecordingSource::RECORD_NORMALLY, recorded_area);
+  }
+
+  bool UpdateAndExpandInvalidation(Region* invalidation,
+                                   const gfx::Size& layer_size,
+                                   const gfx::Rect& visible_layer_rect) {
+    return UpdateAndExpandInvalidation(invalidation, layer_size,
+                                       visible_layer_rect, nullptr);
   }
 
   bool UpdateWholePile() {