DevTools: do not abuse inspector controller for the front-end side plumbing.

Source/web/FrameLoaderClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple 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.
@@ skipping 71 matching lines @@
 #include "public/web/WebPermissionClient.h"
 #include "public/web/WebPlugin.h"
 #include "public/web/WebPluginParams.h"
 #include "public/web/WebPluginPlaceholder.h"
 #include "public/web/WebSecurityOrigin.h"
 #include "public/web/WebTransitionElementData.h"
 #include "public/web/WebViewClient.h"
 #include "web/PluginPlaceholderImpl.h"
 #include "web/SharedWorkerRepositoryClientImpl.h"
 #include "web/WebDataSourceImpl.h"
+#include "web/WebDevToolsFrontendImpl.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebPluginContainerImpl.h"
 #include "web/WebPluginLoadObserver.h"
 #include "web/WebViewImpl.h"
 #include "wtf/StringExtras.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/WTFString.h"
 #include <v8.h>
 
 namespace blink {
@@ skipping 22 matching lines @@
             DeviceMotionController::from(*document);
             DeviceOrientationController::from(*document);
             if (RuntimeEnabledFeatures::deviceLightEnabled())
                 DeviceLightController::from(*document);
             NavigatorGamepad::from(*document);
             if (RuntimeEnabledFeatures::serviceWorkerEnabled())
                 NavigatorServiceWorker::from(*document);
             DOMWindowStorageController::from(*document);
         }
     }
+    // FIXME: when extensions go out of process, this whole concept stops working.
+    WebDevToolsFrontendImpl* devToolsFrontend = m_webFrame->top()->isWebLocalFrame() ? toWebLocalFrameImpl(m_webFrame->top())->devToolsFrontend() : nullptr;
+    if (devToolsFrontend)
+        devToolsFrontend->didClearWindowObject(m_webFrame);
 }
 
 void FrameLoaderClientImpl::documentElementAvailable()
 {
     if (m_webFrame->client())
         m_webFrame->client()->didCreateDocumentElement(m_webFrame);
 }
 
 void FrameLoaderClientImpl::didCreateScriptContext(v8::Handle<v8::Context> context, int extensionGroup, int worldId)
 {
@@ skipping 788 matching lines @@
 
 void FrameLoaderClientImpl::suddenTerminationDisablerChanged(bool present, SuddenTerminationDisablerType type)
 {
     if (m_webFrame->client()) {
         m_webFrame->client()->suddenTerminationDisablerChanged(
             present, static_cast<WebFrameClient::SuddenTerminationDisablerType>(type));
     }
 }
 
 } // namespace blink