DevTools: always use 16bit strings for inspector protocol.

third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp

 /*
  * Copyright (c) 2010-2011 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 127 matching lines @@
 {
     v8::Local<v8::Value> data = context->GetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex));
     if (data.IsEmpty() || !data->IsString())
         return 0;
     String16 dataString = toProtocolString(data.As<v8::String>());
     if (dataString.isEmpty())
         return 0;
     size_t commaPos = dataString.find(",");
     if (commaPos == kNotFound)
         return 0;
-    return dataString.left(commaPos).toInt();
+    return dataString.substring(0, commaPos).toInt();
 }
 
 void V8DebuggerImpl::addDebuggerAgent(int contextGroupId, V8DebuggerAgentImpl* agent)
 {
     ASSERT(contextGroupId);
     ASSERT(!m_debuggerAgentsMap.contains(contextGroupId));
     if (m_debuggerAgentsMap.isEmpty())
         enable();
     m_debuggerAgentsMap.set(contextGroupId, agent);
 
@@ skipping 678 matching lines @@
 }
 
 v8::Local<v8::Context> V8DebuggerImpl::regexContext()
 {
     if (m_regexContext.IsEmpty())
         m_regexContext.Reset(m_isolate, v8::Context::New(m_isolate));
     return m_regexContext.Get(m_isolate);
 }
 
 } // namespace blink