cc: Add pixel tests for PictureDrawQuad

cc/test/fake_picture_pile_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/test/fake_picture_pile_impl.h"
 
 #include <utility>
 
 #include "cc/test/impl_side_painting_settings.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 62 matching lines @@
   EXPECT_LT(y, tiling_.num_tiles_y());
 
   if (!HasRecordingAt(x, y))
     return;
   picture_list_map_.erase(std::pair<int, int>(x, y));
   EXPECT_FALSE(HasRecordingAt(x, y));
 
   UpdateRecordedRegion();
 }
 
+void FakePicturePileImpl::RerecordPile() {
+  for (int y = 0; y < num_tiles_y(); ++y) {
+    for (int x = 0; x < num_tiles_x(); ++x) {
+      RemoveRecordingAt(x, y);
+      AddRecordingAt(x, y);
+    }
+  }
+}
+
 }  // namespace cc