Add a layer of indirection between Frame and Page

Source/core/frame/FrameHost.cpp

Index: Source/core/frame/FrameHost.cpp
diff --git a/Source/modules/crypto/RsaSsaParams.cpp b/Source/core/frame/FrameHost.cpp
similarity index 79%
copy from Source/modules/crypto/RsaSsaParams.cpp
copy to Source/core/frame/FrameHost.cpp
index 214efc3abb211625dde690b8891cc5c11f8851c4..b59f3bcc0fb97420728105b330c18dccbc31d88c 100644
--- a/Source/modules/crypto/RsaSsaParams.cpp
+++ b/Source/core/frame/FrameHost.cpp
@@ -29,24 +29,35 @@
  */
 
 #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();
+}
+
+}