Remove PluginLoadObserver and related logic, it was only used for NPAPI.

third_party/WebKit/Source/web/WebPluginLoadObserver.cpp

-/*
- * Copyright (C) 2009 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
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- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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- */
-
-#include "config.h"
-#include "web/WebPluginLoadObserver.h"
-
-#include "public/web/WebPlugin.h"
-#include "web/WebPluginContainerImpl.h"
-
-namespace blink {
-
-WebPluginLoadObserver::~WebPluginLoadObserver()
-{
-#if !ENABLE(OILPAN)
-    if (m_pluginContainer)
-        m_pluginContainer->willDestroyPluginLoadObserver(this);
-#endif
-}
-
-DEFINE_TRACE(WebPluginLoadObserver)
-{
-    visitor->trace(m_pluginContainer);
-}
-
-void WebPluginLoadObserver::didFinishLoading()
-{
-    if (!m_pluginContainer)
-        return;
-    if (WebPlugin* plugin = m_pluginContainer->plugin())
-        plugin->didFinishLoadingFrameRequest(m_notifyURL, m_notifyData);
-}
-
-void WebPluginLoadObserver::didFailLoading(const WebURLError& error)
-{
-    if (!m_pluginContainer)
-        return;
-    if (WebPlugin* plugin = m_pluginContainer->plugin())
-        plugin->didFailLoadingFrameRequest(m_notifyURL, m_notifyData, error);
-}
-
-} // namespace blink