Rename blink::AtomicString::Lower() to DeprecatedLower().

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIContent.cpp

 // Copyright 2017 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 "core/css/properties/CSSPropertyAPIContent.h"
 
 #include "core/CSSValueKeywords.h"
 #include "core/css/CSSCounterValue.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSStringValue.h"
@@ skipping 12 matching lines @@
   if (args.Peek().GetType() != kIdentToken)
     return nullptr;
 
   AtomicString attr_name =
       args.ConsumeIncludingWhitespace().Value().ToAtomicString();
   if (!args.AtEnd())
     return nullptr;
 
   // TODO(esprehn): This should be lowerASCII().
   if (context->IsHTMLDocument())
-    attr_name = attr_name.Lower();
+    attr_name = attr_name.DeprecatedLower();
 
   CSSFunctionValue* attr_value = CSSFunctionValue::Create(CSSValueAttr);
   attr_value->Append(*CSSCustomIdentValue::Create(attr_name));
   return attr_value;
 }
 
 CSSValue* ConsumeCounterContent(CSSParserTokenRange args, bool counters) {
   CSSCustomIdentValue* identifier =
       CSSPropertyParserHelpers::ConsumeCustomIdent(args);
   if (!identifier)
@@ skipping 61 matching lines @@
       if (!parsed_value)
         return nullptr;
     }
     values->Append(*parsed_value);
   } while (!range.AtEnd());
 
   return values;
 }
 
 }  // namespace blink