Fix some memory leaks.

ui/views/view_unittest.cc

 // Copyright (c) 2012 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 <map>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/rand_util.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 2810 matching lines @@
   content_view->AddChildView(v1);
 
   View* v2 = new View;
   v1->AddChildView(v2);
   v2->SetPaintToLayer(true);
   EXPECT_TRUE(LayerIsAncestor(widget()->GetCompositor()->root_layer(),
                               v2->layer()));
   EXPECT_TRUE(v2->layer()->IsDrawn());
 
   content_view->RemoveChildView(v1);
+
   EXPECT_FALSE(LayerIsAncestor(widget()->GetCompositor()->root_layer(),
                                v2->layer()));
 
   // Reparent |v2|.
   content_view->AddChildView(v2);
+  delete v1;
+  v1 = NULL;
   EXPECT_TRUE(LayerIsAncestor(widget()->GetCompositor()->root_layer(),
                               v2->layer()));
   EXPECT_TRUE(v2->layer()->IsDrawn());
 }
 
 class PaintTrackingView : public View {
  public:
   PaintTrackingView() : painted_(false) {
   }
 
@@ skipping 120 matching lines @@
 
   // Move c1 to the front. The layers should have moved too.
   content->ReorderChildView(c1, -1);
   EXPECT_EQ(c1->layer(), parent_layer->children()[1]);
   EXPECT_EQ(c2->layer(), parent_layer->children()[0]);
 }
 
 #endif  // USE_AURA
 
 }  // namespace views