Use factory methods for Skia effects in unit tests.

cc/trees/damage_tracker_unittest.cc

 // Copyright 2011 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/trees/damage_tracker.h"
 
 #include "cc/base/math_util.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/output/filter_operation.h"
 #include "cc/output/filter_operations.h"
@@ skipping 522 matching lines @@
 }
 
 TEST_F(DamageTrackerTest, VerifyDamageForImageFilter) {
   scoped_ptr<LayerImpl> root = CreateAndSetUpTestTreeWithOneSurface();
   LayerImpl* child = root->children()[0];
   gfx::Rect root_damage_rect, child_damage_rect;
 
   // Allow us to set damage on child too.
   child->SetDrawsContent(true);
 
-  skia::RefPtr<SkImageFilter> filter =
-          skia::AdoptRef(new SkBlurImageFilter(SkIntToScalar(2),
-                                               SkIntToScalar(2)));
+  skia::RefPtr<SkImageFilter> filter = skia::AdoptRef(
+      SkBlurImageFilter::Create(SkIntToScalar(2), SkIntToScalar(2)));
   FilterOperations filters;
   filters.Append(FilterOperation::CreateReferenceFilter(filter));
 
   // Setting the filter will damage the whole surface.
   ClearDamageForAllSurfaces(root.get());
   child->SetFilters(filters);
   EmulateDrawingOneFrame(root.get());
   root_damage_rect =
           root->render_surface()->damage_tracker()->current_damage_rect();
   child_damage_rect =
@@ skipping 919 matching lines @@
     gfx::Rect root_damage_rect =
         root->render_surface()->damage_tracker()->current_damage_rect();
     gfx::Rect damage_we_care_about = gfx::Rect(i, i);
     EXPECT_LE(damage_we_care_about.right(), root_damage_rect.right());
     EXPECT_LE(damage_we_care_about.bottom(), root_damage_rect.bottom());
   }
 }
 
 }  // namespace
 }  // namespace cc