[inspector] use own version of third_party/inspector_protocol

third_party/WebKit/Source/platform/inspector_protocol/lib/ErrorSupport_cpp.template

-// 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 "ErrorSupport.h"
-
-{% for namespace in config.protocol.namespace %}
-namespace {{namespace}} {
-{% endfor %}
-
-ErrorSupport::ErrorSupport() : m_errorString(nullptr) { }
-ErrorSupport::ErrorSupport(String* errorString) : m_errorString(errorString) { }
-ErrorSupport::~ErrorSupport()
-{
-    if (m_errorString && hasErrors()) {
-        StringBuilder builder;
-        builder.append("Internal error(s): ");
-        builder.append(errors());
-        *m_errorString = builder.toString();
-    }
-}
-
-void ErrorSupport::setName(const String& name)
-{
-    DCHECK(m_path.size());
-    m_path[m_path.size() - 1] = name;
-}
-
-void ErrorSupport::push()
-{
-    m_path.push_back(String());
-}
-
-void ErrorSupport::pop()
-{
-    m_path.pop_back();
-}
-
-void ErrorSupport::addError(const String& error)
-{
-    StringBuilder builder;
-    for (size_t i = 0; i < m_path.size(); ++i) {
-        if (i)
-            builder.append('.');
-        builder.append(m_path[i]);
-    }
-    builder.append(": ");
-    builder.append(error);
-    m_errors.push_back(builder.toString());
-}
-
-bool ErrorSupport::hasErrors()
-{
-    return m_errors.size();
-}
-
-String ErrorSupport::errors()
-{
-    StringBuilder builder;
-    for (size_t i = 0; i < m_errors.size(); ++i) {
-        if (i)
-            builder.append("; ");
-        builder.append(m_errors[i]);
-    }
-    return builder.toString();
-}
-
-{% for namespace in config.protocol.namespace %}
-} // namespace {{namespace}}
-{% endfor %}