Revert 84311 - REGRESSION(r55762): Highlight color can't be copied in gmail.

Source/WebCore/editing/Editor.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 898 matching lines @@
                 break;
             }
         }
         if (node == m_frame->selection()->end().deprecatedNode())
             break;
     }
 
     return state;
 }
 
-bool Editor::hasTransparentBackgroundColor(CSSStyleDeclaration* style)
+static bool hasTransparentBackgroundColor(CSSStyleDeclaration* style)
 {
     RefPtr<CSSValue> cssValue = style->getPropertyCSSValue(CSSPropertyBackgroundColor);
     if (!cssValue)
         return true;
 
     if (!cssValue->isPrimitiveValue())
         return false;
     CSSPrimitiveValue* value = static_cast<CSSPrimitiveValue*>(cssValue.get());
 
     if (value->primitiveType() == CSSPrimitiveValue::CSS_RGBCOLOR)
@@ skipping 2347 matching lines @@
             checkingTypes |= TextCheckingTypeReplacement;
         if (shouldMarkSpelling && isAutomaticSpellingCorrectionEnabled())
             checkingTypes |= TextCheckingTypeCorrection;
     }
 #endif
 
     return checkingTypes;
 }
 
 } // namespace WebCore