cc: Increment the ref count when assigning the SkImageFilter

cc/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/damage_tracker.h"
 
 #include "cc/layer_impl.h"
 #include "cc/layer_sorter.h"
 #include "cc/layer_tree_host_common.h"
 #include "cc/math_util.h"
@@ skipping 378 matching lines @@
 
 TEST_F(DamageTrackerTest, verifyDamageForImageFilter)
 {
     scoped_ptr<LayerImpl> root = createAndSetUpTestTreeWithOneSurface();
     LayerImpl* child = root->children()[0];
     gfx::RectF rootDamageRect, childDamageRect;
 
     // Allow us to set damage on child too.
     child->setDrawsContent(true);
 
-    SkAutoTUnref<SkImageFilter> filter(new SkBlurImageFilter(SkIntToScalar(2),
-                                                             SkIntToScalar(2)));
+    SkRefPtr<SkImageFilter> filter(new SkBlurImageFilter(SkIntToScalar(2), SkIntToScalar(2)));

[Stephen White, 2012/11/21 17:23:00]

I don't think this is correct.  I think this'll end up with a refcount of 2
after assignment to the SkRefPtr, and 1 at the end of the function.

     // Setting the filter will damage the whole surface.
     clearDamageForAllSurfaces(root.get());
     child->setFilter(filter);
     emulateDrawingOneFrame(root.get());
     rootDamageRect = root->renderSurface()->damageTracker()->currentDamageRect();
     childDamageRect = child->renderSurface()->damageTracker()->currentDamageRect();
     EXPECT_FLOAT_RECT_EQ(gfx::RectF(100, 100, 30, 30), rootDamageRect);
     EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 30, 30), childDamageRect);
 
     // CASE 1: Setting the update rect should damage the whole surface (for now)
@@ skipping 739 matching lines @@
     EXPECT_TRUE(rootDamageRect.IsEmpty());
 
     // Damage should remain empty even after one frame, since there's yet no new damage
     emulateDrawingOneFrame(root.get());
     rootDamageRect = root->renderSurface()->damageTracker()->currentDamageRect();
     EXPECT_TRUE(rootDamageRect.IsEmpty());
 }
 
 }  // namespace
 }  // namespace cc