Make classes and structures in core/style, core/plugins and core/streams fast-allocated.

Source/core/style/GridResolvedPosition.h

Index: Source/core/style/GridResolvedPosition.h
diff --git a/Source/core/style/GridResolvedPosition.h b/Source/core/style/GridResolvedPosition.h
index 008f220c4069d2d3781299065ea4d8d3a1b89565..e35441fa95c437ab8181b1b97e5a4700acb4a50e 100644
--- a/Source/core/style/GridResolvedPosition.h
+++ b/Source/core/style/GridResolvedPosition.h
@@ -6,6 +6,7 @@
 #define GridResolvedPosition_h
 
 #include "core/style/GridPosition.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
@@ -28,6 +29,7 @@ enum GridTrackSizingDirection {
 // This class represents an index into one of the dimensions of the grid array.
 // Wraps a size_t integer just for the purpose of knowing what we manipulate in the grid code.
 class GridResolvedPosition {
+    DISALLOW_ALLOCATION();
 public:
     static GridResolvedPosition adjustGridPositionForAfterEndSide(size_t resolvedPosition)
     {