[DevTools] Reduce API surface of String16.

third_party/WebKit/Source/platform/v8_inspector/V8RuntimeAgentImpl.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 498 matching lines @@
         if (!message.IsEmpty())
             *exceptionDetails = scope.injectedScript()->createExceptionDetails(message);
         else
             *errorString = "Script compilation failed";
         return;
     }
 
     if (!persistScript)
         return;
 
-    String16 scriptValueId = String16::fromInteger(script->GetUnboundScript()->GetId());
+    String16 scriptValueId = protocol::string16FromInteger(script->GetUnboundScript()->GetId());
     std::unique_ptr<v8::Global<v8::Script>> global(new v8::Global<v8::Script>(m_inspector->isolate(), script));
     m_compiledScripts[scriptValueId] = std::move(global);
     *scriptId = scriptValueId;
 }
 
 void V8RuntimeAgentImpl::runScript(
     const String16& scriptId,
     const Maybe<int>& executionContextId,
     const Maybe<String16>& objectGroup,
     const Maybe<bool>& doNotPauseOnExceptionsAndMuteConsole,
@@ skipping 147 matching lines @@
         reportMessage(message, true);
 }
 
 void V8RuntimeAgentImpl::reportMessage(V8ConsoleMessage* message, bool generatePreview)
 {
     message->reportToFrontend(&m_frontend, m_session, generatePreview);
     m_frontend.flush();
 }
 
 } // namespace blink