[DevTools] Reduce API surface of String16.

third_party/WebKit/Source/platform/inspector_protocol/Parser.cpp

 // Copyright 2016 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 "platform/inspector_protocol/Parser.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/inspector_protocol/Values.h"
 
 namespace blink {
@@ skipping 182 matching lines @@
         // Block comment must close before end-of-input.
         return false;
     }
 
     return false;
 }
 
 void skipWhitespaceAndComments(const UChar* start, const UChar* end, const UChar** whitespaceEnd)
 {
     while (start < end) {
-        if (isSpaceOrNewline(*start)) {
+        if (protocol::isSpaceOrNewLine(*start)) {
             ++start;
         } else if (*start == '/') {
             const UChar* commentEnd;
             if (!skipComment(start, end, &commentEnd))
                 break;
             start = commentEnd;
         } else {
             break;
         }
     }
@@ skipping 158 matching lines @@
         result = Value::null();
         break;
     case BoolTrue:
         result = FundamentalValue::create(true);
         break;
     case BoolFalse:
         result = FundamentalValue::create(false);
         break;
     case Number: {
         bool ok;
-        double value = String16::charactersToDouble(tokenStart, tokenEnd - tokenStart, &ok);
+        double value = protocol::string16CharactersToDouble(tokenStart, tokenEnd - tokenStart, &ok);
         if (!ok)
             return nullptr;
         int number = static_cast<int>(value);
         if (number == value)
             result = FundamentalValue::create(number);
         else
             result = FundamentalValue::create(value);
         break;
     }
     case StringLiteral: {
@@ skipping 97 matching lines @@
 
 std::unique_ptr<Value> parseJSON(const String16& json)
 {
     if (json.isEmpty())
         return nullptr;
     return parseJSONInternal(json.characters16(), json.length());
 }
 
 } // namespace protocol
 } // namespace blink