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

components/dom_distiller/ios/distiller_page_ios.mm

 // Copyright 2014 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 "components/dom_distiller/ios/distiller_page_ios.h"
 
 #import <UIKit/UIKit.h>
 
 #include <utility>
 
@@ skipping 28 matching lines @@
   std::unique_ptr<base::Value> result;
 
   if (max_depth < 0) {
     DLOG(WARNING) << "JS maximum recursion depth exceeded.";
     return result;
   }
 
   CFTypeID result_type = CFGetTypeID(wk_result);
   if (result_type == CFStringGetTypeID()) {
     result.reset(new base::StringValue(base::SysNSStringToUTF16(wk_result)));
-    DCHECK(result->IsType(base::Value::TYPE_STRING));
+    DCHECK(result->IsType(base::Value::Type::STRING));
   } else if (result_type == CFNumberGetTypeID()) {
     // Different implementation is here.
     if ([wk_result intValue] != [wk_result doubleValue]) {
       result.reset(new base::FundamentalValue([wk_result doubleValue]));
-      DCHECK(result->IsType(base::Value::TYPE_DOUBLE));
+      DCHECK(result->IsType(base::Value::Type::DOUBLE));
     } else {
       result.reset(new base::FundamentalValue([wk_result intValue]));
-      DCHECK(result->IsType(base::Value::TYPE_INTEGER));
+      DCHECK(result->IsType(base::Value::Type::INTEGER));
     }
     // End of different implementation.
   } else if (result_type == CFBooleanGetTypeID()) {
     result.reset(
         new base::FundamentalValue(static_cast<bool>([wk_result boolValue])));
-    DCHECK(result->IsType(base::Value::TYPE_BOOLEAN));
+    DCHECK(result->IsType(base::Value::Type::BOOLEAN));
   } else if (result_type == CFNullGetTypeID()) {
     result = base::Value::CreateNullValue();
-    DCHECK(result->IsType(base::Value::TYPE_NULL));
+    DCHECK(result->IsType(base::Value::Type::NONE));
   } else if (result_type == CFDictionaryGetTypeID()) {
     std::unique_ptr<base::DictionaryValue> dictionary =
         base::MakeUnique<base::DictionaryValue>();
     for (id key in wk_result) {
       NSString* obj_c_string = base::mac::ObjCCast<NSString>(key);
       const std::string path = base::SysNSStringToUTF8(obj_c_string);
       std::unique_ptr<base::Value> value =
           ValueResultFromScriptResult(wk_result[obj_c_string], max_depth - 1);
       if (value) {
         dictionary->Set(path, std::move(value));
@@ skipping 110 matching lines @@
   }
   OnDistillationDone(url_, resultValue.get());
 }
 
 std::unique_ptr<base::Value> DistillerPageIOS::ValueResultFromScriptResult(
     id wk_result) {
   return ::ValueResultFromScriptResult(wk_result,
                                        kMaximumParsingRecursionDepth);
 }
 }  // namespace dom_distiller