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

ios/chrome/browser/find_in_page/js_findinpage_manager.mm

 // Copyright 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.
 
 #import "ios/chrome/browser/find_in_page/js_findinpage_manager.h"
 
 #include <memory>
 #include <string>
 
 #include "base/json/json_reader.h"
@@ skipping 159 matching lines @@
 
 - (BOOL)processFindInPageResult:(id)result scrollPosition:(CGPoint*)point {
   if (!result)
     return NO;
 
   // Parse JSONs.
   std::string json([result UTF8String]);
   std::unique_ptr<base::Value> root(base::JSONReader::Read(json, false));
   if (!root.get())
     return YES;
-  if (!root->IsType(base::Value::TYPE_LIST))
+  if (!root->IsType(base::Value::Type::LIST))
     return YES;
 
   base::ListValue* resultList = static_cast<base::ListValue*>(root.get());
   DCHECK(resultList);
   if (resultList) {
     if (resultList->GetSize() == 2) {
       int numHighlighted = 0;
       if (resultList->GetInteger(0, &numHighlighted)) {
         if (numHighlighted > 0) {
           base::ListValue* position;
@@ skipping 28 matching lines @@
 - (void)updateIndex:(NSInteger)index atPoint:(CGPoint)point {
   [self.findInPageModel updateIndex:index atPoint:point];
 }
 
 - (FindInPageEntry)findInPageEntryForJson:(NSString*)jsonStr {
   std::string json([jsonStr UTF8String]);
   std::unique_ptr<base::Value> root(base::JSONReader::Read(json, false));
   if (!root.get())
     return kFindInPageEntryZero;
 
-  if (!root->IsType(base::Value::TYPE_LIST))
+  if (!root->IsType(base::Value::Type::LIST))
     return kFindInPageEntryZero;
 
   base::ListValue* position = static_cast<base::ListValue*>(root.get());
   return [self entryForListValue:position];
 }
 
 - (FindInPageEntry)entryForListValue:(base::ListValue*)position {
   if (!position)
     return kFindInPageEntryZero;
 
@@ skipping 19 matching lines @@
 }
 
 #pragma mark -
 #pragma mark ProtectedMethods
 
 - (NSString*)scriptPath {
   return @"find_in_page";
 }
 
 @end