Add text autosizing override in the inspector.

Source/core/inspector/InspectorOverlay.h

 /*
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 95 matching lines @@
 class InspectorOverlay {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     // This must be kept in sync with the overrideEntries array in InspectorOverlayPage.html.
     enum OverrideType {
         UserAgentOverride = 1,
         DeviceMetricsOverride = 1 << 1,
         GeolocationOverride = 1 << 2,
         DeviceOrientationOverride = 1 << 3,
         TouchOverride = 1 << 4,
-        CSSMediaOverride = 1 << 5
+        CSSMediaOverride = 1 << 5,
+        TextAutosizingOverride = 1 << 6
     };
     static PassOwnPtr<InspectorOverlay> create(Page* page, InspectorClient* client)
     {
         return adoptPtr(new InspectorOverlay(page, client));
     }
 
     ~InspectorOverlay();
 
     void update();
     void hide();
@@ skipping 59 matching lines @@
     bool m_drawViewSizeWithGrid;
     Timer<InspectorOverlay> m_timer;
     unsigned m_overrides;
     int m_overridesTopOffset;
 };
 
 } // namespace WebCore
 
 
 #endif // InspectorOverlay_h