Remove bogus use of the term "user style" in Blink and Blink API

Source/core/page/PageGroup.h

 /*
  * Copyright (C) 2008 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PageGroup_h
 #define PageGroup_h
 
-#include "core/page/UserStyleSheet.h"
+#include "core/page/InjectedStyleSheet.h"
 #include "core/platform/Supplementable.h"
 #include "wtf/HashSet.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
     class KURL;
     class Page;
     class SecurityOrigin;
 
     class PageGroup : public Supplementable<PageGroup>, public RefCounted<PageGroup> {
         WTF_MAKE_NONCOPYABLE(PageGroup); WTF_MAKE_FAST_ALLOCATED;
     public:
         ~PageGroup();
 
         static PassRefPtr<PageGroup> create() { return adoptRef(new PageGroup()); }
         static PageGroup* sharedGroup();
         static PageGroup* inspectorGroup();
 
         const HashSet<Page*>& pages() const { return m_pages; }
 
         void addPage(Page*);
         void removePage(Page*);
 
-        void addUserStyleSheet(const String& source, const KURL&,
-                               const Vector<String>& whitelist, const Vector<String>& blacklist,
-                               UserContentInjectedFrames,
-                               UserStyleLevel level = UserStyleUserLevel,
-                               UserStyleInjectionTime injectionTime = InjectInExistingDocuments);
+        void injectStyleSheet(const String& source, const Vector<String>& whitelist, StyleInjectionTarget);
+        void removeInjectedStyleSheets();
 
-        void removeAllUserContent();
-
-        const UserStyleSheetVector& userStyleSheets() const { return m_userStyleSheets; }
+        const InjectedStyleSheetVector& injectedStyleSheets() const { return m_injectedStyleSheets; }
 
     private:
         PageGroup();
 
         void invalidatedInjectedStyleSheetCacheInAllFrames();
 
         HashSet<Page*> m_pages;
-        UserStyleSheetVector m_userStyleSheets;
+        InjectedStyleSheetVector m_injectedStyleSheets;
     };
 
 } // namespace WebCore
 
 #endif // PageGroup_h