Remove stylesheet injection from Blink.

Source/core/page/InjectedStyleSheets.cpp

Index: Source/core/page/InjectedStyleSheets.cpp
diff --git a/Source/core/page/InjectedStyleSheets.cpp b/Source/core/page/InjectedStyleSheets.cpp
deleted file mode 100644
index b56078ed7615449ffb46bcc2b8f5f525b10113d3..0000000000000000000000000000000000000000
--- a/Source/core/page/InjectedStyleSheets.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- * Copyright 2014 The Chromium Authors. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "core/page/InjectedStyleSheets.h"
-
-#include "core/dom/Document.h"
-#include "core/dom/StyleEngine.h"
-#include "core/frame/LocalFrame.h"
-#include "core/page/Page.h"
-#include "wtf/HashSet.h"
-
-namespace blink {
-
-// static
-InjectedStyleSheets& InjectedStyleSheets::instance()
-{
-    DEFINE_STATIC_LOCAL(InjectedStyleSheets, instance, ());
-    return instance;
-}
-
-void InjectedStyleSheets::add(const String& source, const Vector<String>& whitelist, StyleInjectionTarget injectIn)
-{
-    m_entries.append(adoptPtr(new InjectedStyleSheetEntry(source, whitelist, injectIn)));
-    invalidateInjectedStyleSheetCacheInAllFrames();
-}
-
-void InjectedStyleSheets::removeAll()
-{
-    m_entries.clear();
-    invalidateInjectedStyleSheetCacheInAllFrames();
-}
-
-void InjectedStyleSheets::invalidateInjectedStyleSheetCacheInAllFrames()
-{
-    // Clear our cached sheets and have them just reparse.
-    const HashSet<Page*>& pages = Page::ordinaryPages();
-    for (const Page* page : pages) {
-        for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-            if (frame->isLocalFrame())
-                toLocalFrame(frame)->document()->styleEngine().invalidateInjectedStyleSheetCache();
-        }
-    }
-}
-
-} // namespace blink