Make base::Value::TYPE a scoped enum.

ui/compositor/layer_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 "ui/compositor/layer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 906 matching lines @@
   std::string name = "\"\'\\/\b\f\n\r\t\n";
   layer->set_name(name);
   std::unique_ptr<base::trace_event::ConvertableToTraceFormat> debug_info(
       layer->TakeDebugInfo(layer->cc_layer_for_testing()));
   EXPECT_TRUE(debug_info.get());
   std::string json;
   debug_info->AppendAsTraceFormat(&json);
   base::JSONReader json_reader;
   std::unique_ptr<base::Value> debug_info_value(json_reader.ReadToValue(json));
   EXPECT_TRUE(debug_info_value);
-  EXPECT_TRUE(debug_info_value->IsType(base::Value::TYPE_DICTIONARY));
+  EXPECT_TRUE(debug_info_value->IsType(base::Value::Type::DICTIONARY));
   base::DictionaryValue* dictionary = 0;
   EXPECT_TRUE(debug_info_value->GetAsDictionary(&dictionary));
   std::string roundtrip;
   EXPECT_TRUE(dictionary->GetString("layer_name", &roundtrip));
   EXPECT_EQ(name, roundtrip);
 }
 
 TEST_F(LayerWithNullDelegateTest, SwitchLayerPreservesCCLayerState) {
   std::unique_ptr<Layer> l1(CreateLayer(LAYER_SOLID_COLOR));
   l1->SetFillsBoundsOpaquely(true);
@@ skipping 1316 matching lines @@
   layer.set_name("foo");
   std::unique_ptr<base::trace_event::ConvertableToTraceFormat> debug_info =
       layer.TakeDebugInfo(nullptr);
   std::string trace_format("bar,");
   debug_info->AppendAsTraceFormat(&trace_format);
   std::string expected("bar,{\"layer_name\":\"foo\"}");
   EXPECT_EQ(expected, trace_format);
 }
 
 }  // namespace ui