Remove several Page.h includes in preparation for removing page/ dependencies from the rest of core

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 79a84b8f9adfaa1d63cbec035bb4673e37bd25c0..7efc47d857326cda4840dd94cfe69bf9d09ef0cd 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -3697,7 +3697,7 @@ HTMLFrameOwnerElement* Document::ownerElement() const
 
 String Document::cookie(ExceptionState& es) const
 {
-    if (page() && !page()->settings().cookieEnabled())
+    if (settings() && !settings()->cookieEnabled())
         return String();
 
     // FIXME: The HTML5 DOM spec states that this attribute can raise an
@@ -3724,7 +3724,7 @@ String Document::cookie(ExceptionState& es) const
 
 void Document::setCookie(const String& value, ExceptionState& es)
 {
-    if (page() && !page()->settings().cookieEnabled())
+    if (settings() && !settings()->cookieEnabled())
         return;
 
     // FIXME: The HTML5 DOM spec states that this attribute can raise an