Make classes and structures in core/page fast-allocated.

Source/core/page/WindowFeatures.h

Index: Source/core/page/WindowFeatures.h
diff --git a/Source/core/page/WindowFeatures.h b/Source/core/page/WindowFeatures.h
index c1018f09a8c4c83d1d3978adf9bdaa5ce7eb548a..e644f0171bf9cb787ead66bae88a966b1a664b87 100644
--- a/Source/core/page/WindowFeatures.h
+++ b/Source/core/page/WindowFeatures.h
@@ -29,6 +29,7 @@
 #ifndef WindowFeatures_h
 #define WindowFeatures_h
 
+#include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/text/WTFString.h"
 
@@ -37,6 +38,7 @@ namespace blink {
 class IntRect;
 
 struct WindowFeatures {
+    DISALLOW_ALLOCATION();
     WindowFeatures()
         : x(0)
         , xSet(false)