Add a layer of indirection between Frame and Page

Source/core/frame/FrameHost.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
  * OWNER 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.
  */
 
 #include "config.h"
-#include "modules/crypto/RsaSsaParams.h"
+#include "core/frame/FrameHost.h"
 
-#include "public/platform/WebCryptoAlgorithmParams.h"
+#include "core/page/Page.h"
 
 namespace WebCore {
 
-Algorithm* RsaSsaParams::hash()
+PassOwnPtr<FrameHost> FrameHost::create(Page& page)
 {
-    if (!m_hash)
-        m_hash = Algorithm::create(m_algorithm.rsaSsaParams()->hash());
-    return m_hash.get();
+    return adoptPtr(new FrameHost(page));
 }
 
-RsaSsaParams::RsaSsaParams(const blink::WebCryptoAlgorithm& algorithm)
-    : Algorithm(algorithm)
+FrameHost::FrameHost(Page& page)
+    : m_page(page)
 {
-    ASSERT(algorithm.rsaSsaParams());
-    ScriptWrappable::init(this);
 }
 
-} // namespace WebCore
+Settings& FrameHost::settings() const
+{
+    return m_page.settings();
+}
+
+Chrome& FrameHost::chrome() const
+{
+    return m_page.chrome();
+}
+
+float FrameHost::deviceScaleFactor() const
+{
+    return m_page.deviceScaleFactor();
+}
+
+}